1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4563922447e2471514c6125c339a85e1e639b19068209b68e3d9e7cf3e28fe4. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/375553d2-dcbf-4132-a062-84b7a5025eca.json and https://artists.proofprofile.net/proofs/artist/375553d2-dcbf-4132-a062-84b7a5025eca.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Benedict Sheehan: Liturgy of St. John Chrysostom
Liturgy of St. John Chrysostom: No. 1, Great Litany
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e38808f14fd5a66abe8dfff4d5c58689f2da52075ccba2caf37bc135078ee71. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:37:47Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1803564.
Liturgy of St. John Chrysostom: No. 2, Antiphon I (Psalm 102)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75fa48d67cb392a21181ac6a730ff474dfcd89f928e94c5e70eb237d050d256b. Chain 2 (Bitcoin): anchored in block 958733 (2026-07-19T12:51:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1803565.
Liturgy of St. John Chrysostom: No. 3, Antiphon II (Psalm 145)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dc999756171a9f30c6fc07ca16e0d75224c6ce42446057526c4fa19d32fe39f. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1803566.
Liturgy of St. John Chrysostom: No. 7, Holy God
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc079a24c73a90108270c6bc14349defa05a3c1072dc470c2fa58a0a29a64df7d. Chain 2 (Bitcoin): anchored in block 958738 (2026-07-19T16:06:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1803570.
Liturgy of St. John Chrysostom: No. 9, Cherubic Hymn
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf247ec4f28cf95b57b6a43c618cadb520b9a9d635118895bc9612f0918be009. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1803572.
Liturgy of St. John Chrysostom: No. 13, Our Father
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x063fdbc156c55debffabd4b4f1051f088dc702dd1d6192760d225ab533a55257. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1803576.
Liturgy of St. John Chrysostom: No. 14, One Is Holy
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5530934ac61b0484804e83aca409d65961a5ef107336af3449aa3b5c24a1759b. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1803577.
Liturgy of St. John Chrysostom: No. 4, Only-Begotten Son (The Hymn of Justinian)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d1d57f052e4a36b18f5e9347bb5f443ae747dbdaa9cbf7e4c5aa005603263fe. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1803567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf247ec4f28cf95b57b6a43c618cadb520b9a9d635118895bc9612f0918be009. Chain 2 (Bitcoin): anchored in block 958850 (2026-07-20T11:21:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1803572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5530934ac61b0484804e83aca409d65961a5ef107336af3449aa3b5c24a1759b. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1803577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7d8ff1ccdc82d2f271f8b712c1842183e5786b8d017f65bc1bdf878bc0f2b79. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U2011646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3b7efff3c9f804201d277ddd09c6bb0300fe2aea9fcd91d32063bc725aee097. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U2011648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x058c0bcc48347a08fd3a45de1b5ad777a6ee7bdfd7f1375deac6ef89cc6ae691. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U2011649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc2e99a134a1aaa37b0eb3e75ec4ef8969b4d9b30c44ef16d3d782f26af4cb31. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U2011651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9924710dbca706b142858cba3099d25254cdbe095e7aaad19f088a2383bbd8eb. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U2011652.
Akathist: I. First Kontakion, Incorruptible King of the Ages
Akathist: XIII. Seventh Kontakion, In the Wondrous Blending of Sounds
The Chamber Choir of St. Tikhon's Monastery
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72152503d16c82dbedd2e4216bf6f4a6dd1ba18c12c11e7e709869d982ba96ef. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCACJ1554765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fbc81594a3925fd389eab72054e6627246e589fc4d01738d8f627c48560a0c1. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCACJ1554766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f3fe99092699638ba69745e449f4acca72bc1a9835723bbdbfe5ff631bcb3ef. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCACJ1554769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x200a0c2af0a3b683a2c607e4e9ae074da307341a0b9e0e1f97b451ebe4302228. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCACJ1554775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30923046da6dc8c8e1d1929458a7b7481d66428ae7695c67594ec35e034b2cd0. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCACJ1554776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe54659153044500adcb8dadd2c582473a31d8da997d21c25d13289811bb9b6b8. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCACJ1554777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc80edfd2878594ffce007afcda19613c32577f2d705e0835e782e1d638dcc0f2. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCACJ1554778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca21e5fda07bb0f006e7643a631eed6d3cd4c963c18ea61756202196d35bb608. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCACJ1554779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5f969f291f5f94c272ce59608c0a69334bab1aba53c9ea97d4bc5010b80a17b. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCACJ1554780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaff6af7e27c8d8bfa0db130a6b30113a08752111098fb09497cee7c628d0564d. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCACJ1554784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f84044f6e991301240b680eadfdc7030271bbe451c6ba6b17049cd47ad9b193. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCACJ1554785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb672b64a8f6ad6405163c1cfb7444acfa5e033536bab6e1291f1d09e6190cf9e. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCACJ1554781.
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0b3b5bf5cf0fdb8914dcfeecc9314dabc749b0c8b3e05a97cd4be44b546160b. Chain 2 (Bitcoin): anchored in block 960173 (2026-07-30T00:11:40Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCACJ1554783.