Live evidence.

Every seal proof.epochpay.today produces is anchored to the public chain.epochcoreqcs.com ledger. The hybrid signing keys below are the same keys that sign the EpochCore RAS Universal Verifier waterseal and every SMB sealed event. Click any hash for the canonical chain-verifier resolution.

Hybrid signing keys

Two algorithms. Two key IDs. Verified on every seal.

Ed25519

5D579BC434FE1EE7

RFC 8032 · FIPS 186-5

64-byte signature · 32-byte public key

ML-DSA-87

00A1B445B44906C3

FIPS 204 · NIST PQ Level 5

4,627-byte signature · 2,592-byte public key

Recent seals

Most-recent watermarks.

Live read of the public seals index. Each row is a real PROOF_WATERMARK_PDF directive on the chain. Hash links resolve at chain.epochcoreqcs.com/v1/verify — no login, no servers in the verification loop.

Sealed at (UTC)	Watermark	Seal full hash (click to verify)	Directive ID
2026-07-18 15:40:12	`675107C91DE461FE`	`675107c91de461fe191cf72267b377efcdf1f71437444d987418b1cbe17dbfe3`	`dir_mrqj9jl5_4emjqb`
2026-07-16 22:28:19	`E2344EAEB7A0E100`	`e2344eaeb7a0e100327cd2ff0711a775b645d167668eb1e7510807559ea3b7c1`	`dir_mro2yoo6_5vn09g`
2026-07-12 06:47:53	`5274E6D07036C625`	`5274e6d07036c625b2c4defa43079b8c1af67797126b319ecc2761951684ef07`	`dir_mrhflvmm_0ozzdu`
2026-07-12 06:47:51	`5CF929537DC8E949`	`5cf929537dc8e949e2408503ce0e0013b4ffa8e48aa9ef6c22f1262a4b368104`	`dir_mrhfltn8_d0ts9x`
2026-07-12 04:00:49	`0DF9C818661FAFE7`	`0df9c818661fafe7e5a45b6ed6f94ed6556cd0d27ca7e0b9528ca204c532e79d`	`dir_mrh9n15n_rwnpo7`
2026-07-12 02:10:32	`17B37C6EB08E49FE`	`17b37c6eb08e49fe7f8b4bf17303f572e90a142094fdfa0d889de98b98041fbb`	`dir_mrh5p7pq_r1xjwh`
2026-07-03 17:39:09	`16EAD99C449CFF8A`	`16ead99c449cff8a12cdb3a85b307cf016b7e683df9ea117f4a85131a7b6ab73`	`dir_mr57wr1p_i4nm4f`
2026-07-03 17:37:13	`ECC21BF830C30543`	`ecc21bf830c30543907d78a2e6eedc2dc288d0a05c974245762604084db3e668`	`dir_mr57u9tp_9nr5uw`
2026-07-03 05:04:42	`05369A640026ECFE`	`05369a640026ecfe7f78a05112fdb790cdaaa525eafc9e95dfad066d39bc3090`	`dir_mr4gyifh_nn1kxl`
2026-07-03 03:13:02	`2E22660972444AFA`	`2e22660972444afa44ee310c70686bde033e75f2722a7df844477bb78bf4670d`	`dir_mr4cyx3j_q2o1ok`
2026-06-30 09:52:39	`8F4520EA131B0B1C`	`8f4520ea131b0b1cd5852f8a15d8c1ca872c6b95b7d58d93c2f7d319c5fdf6fb`	`dir_mr0gx9wf_swx8fi`
2026-06-30 00:50:30	`20744A55B00BB9FA`	`20744a55b00bb9faf652c4feb0577e7d135b699d7ab053b104b82da39f684daf`	`dir_mqzxk1yx_5p5h4o`
2026-06-28 21:44:39	`EFED9FE0F40832F0`	`efed9fe0f40832f032a47f1df722ffcba359fbeaed171639d40dd52200cd09f0`	`dir_mqybh6zp_46wzyj`
2026-06-28 21:44:32	`244BC4752DC99B60`	`244bc4752dc99b60268c97fa73a9830dbb9aa9e635f34c6dbf73a00ebca1c6fb`	`dir_mqybh1sk_bcxotn`
2026-06-28 11:49:10	`2C5D46F6752FB482`	`2c5d46f6752fb482e95c9395dd220e4f23f305023d3f46f5eb94fbd6b5b749a8`	`dir_mqxq7ehj_bmhhb6`
2026-06-23 18:41:13	`960172C0464309BF`	`960172c0464309bfc6a91e678b2c85e3fcaf502da8c320e924f40860dfc7d786`	`dir_mqqzq20i_7p5or2`
2026-06-14 00:39:32	`7ED8B867E48CBB0A`	`7ed8b867e48cbb0ad500c0a4a73f1c333987780e4ccb44a778c1d47fbce3ae53`	`dir_mqd24bj3_x86fl9`
2026-06-12 09:11:21	`9D0B4F38047C2F6F`	`9d0b4f38047c2f6f573e024cd37a05e6c07dab5471a12fb9b680e1323fea6f68`	`dir_mqapitu3_3mubbe`
2026-06-11 03:54:09	`D4479566F0C228DA`	`d4479566f0c228da7213ab6b6f076e7f6a55c1bf3f580815e4ac2482566d2f09`	`dir_mq8yr17l_8yzzql`
2026-06-11 03:54:09	`3A8A56C0E40AD69A`	`3a8a56c0e40ad69ae30300dea8a2eff92cdaecc1daaf55564767c8dd5375cad7`	`dir_mq8yr1dy_g4wi79`
2026-06-07 04:05:54	`D6745CADFDAB7D75`	`d6745cadfdab7d75f1d71ed539d7a7a4a1bcc679ecdbf85b868f6e31f31d1f37`	`dir_mq39er1e_jfn4ms`
2026-06-07 04:04:16	`8B8F12358F7EB291`	`8b8f12358f7eb291e31bf69ed1bea718071fc040c9b919232c01f26a424aa02e`	`dir_mq39cnuf_u2yysc`
2026-06-07 00:59:13	`3B14D8EEB4CF2D9E`	`3b14d8eeb4cf2d9e9900c1c199c18babc80a9e596c94a0ad4c67ac18cc7b6014`	`dir_mq32qorp_sjqntn`
2026-06-05 20:33:37	`0A071E8C2263109D`	`0a071e8c2263109d4fcc7d6fcdff208bc02ee320264a95e8f670e5cf022e56d5`	`dir_mq1dt9bw_a9of5x`
2026-06-04 03:00:48	`6D9DF6CD32E862CB`	`6d9df6cd32e862cb190395cd17f14c8518a8c56454065e52fbf5c14ceda95911`	`dir_mpywrh7g_z8udtk`

Want your seal here? Drop a PDF. Your file never leaves this request — only the seal hash and timestamp are indexed.

Independent verification path

Pick any hash above. Run this. No EpochCore SDK required.

The chain verifier is a public read endpoint. Standard curl + python -m json.tool is enough to prove any seal exists, is dual-signed, and is chain-linked.

# Resolve a seal hash against the public chain.
# Example uses a real production seal — try it:
curl -sS \
  "https://chain.epochcoreqcs.com/v1/verify?hash=fb6b99bfc5c4886bef29d4c928c4633aca3e13f48659f011662cdf341842abe9&full=1" \
  | python -m json.tool

# A passing response looks like:
# {
#   "ok": true, "found": true, "source": "fifo",
#   "directive": { "id": "dir_...", "action": "PROOF_WATERMARK_PDF", ... },
#   "chain_link": { "chain_link_ok": true },
#   "signatures": { "post_quantum_dual_sign": true }
# }