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 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 0x643d02d65b1f3de5f02e44f99de710406251e325c6add0e0fdc7259d533d2a3b. 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/54ff91ea-43a3-4ae9-8fe1-b58b595f7134.json and https://artists.proofprofile.net/proofs/artist/54ff91ea-43a3-4ae9-8fe1-b58b595f7134.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Psalm 63:1-5 (I Will Bless You While I Live)
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 0x37e57fee88179c4c431139f86fe666088bf9f37434bd3798be683ba0c97a3703. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGH1774921 — a six-check JSON result.
Psalm 59:1-2, 9-10a, 16-17 (God Is My Defense)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28b66104cdf277463647e1a9d8f27f6b594358b6b16e2c198e47bd08a3d3ea1f. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGH1774909 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x812769be020a0520943ff43d1473314bd482b4854910b84b8c9b59ac9f55f8ce. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGH1774922 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc82ac0606c0047e941431121fbe97476c8cc6103cc3df679f4f56e1bce7c0d1b. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGH1774923 — a six-check JSON result.
Psalm 27:1-4 (The Lord Is My Light and My Salvation)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb56cda0a22c89b5b76db1c9d8de16d3f6ee99057705aae4fefc583a6e407db2a. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGH1774910 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f6f9d5e6ea7136de28041c5803f74c9fb0732e661c9fe98dcc6ec69e3e7c5b6. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGH1774911 — a six-check JSON result.
Isaiah 62 (Surely Your Salvation Is Coming)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1402a394db2130ba2dc4512bdaa54544913710246907c87e60a6c595c7f5af3b. Chain 2 (Bitcoin): anchored in block 956859 (2026-07-06T01:42:12Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGH1774936 — a six-check JSON result.
Psalm 103:1-6 (Bless the Lord, O My Soul)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62ece969ddafc88d72acb2893896022f769b6ece576151a1a05c60c4ca294a98. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGH1774925 — a six-check JSON result.
Isaiah 40:25-31 (Those Who Wait on the Lord)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00142f94ccbe0846236bfd063d33af2e58311732630082739fcb01889053b959. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-02T22:05:07Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGH1774912 — a six-check JSON result.
Isaiah 43:1b-3a (Fear Not, For I Have Redeemed You)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde4a872b66b1273fd8ed3a50cf2fe73505085730a8c4474f077f14b199eefcc6. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGH1774913 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dbc2fba2ad37789a1c520ad93f8f8eff335916b57896192d36459448dc53ba2. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGH1774951 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3661c0e368608e8db83f02d225593969747db0bea63363e15bf973bb8452a79f. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGH1774914 — a six-check JSON result.
Psalm 28:1-2, 6-9 (To You, I Will Cry. O Lord)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09bad02f1548b2749a11c83530fdda83b9cf128ddd63311854bb3ff959e7604c. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGH1774915 — a six-check JSON result.
Psalm 34:17-22 (The Righteous Cry Out, And the Lord Hears)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5327cbf58d8f9d629bb52aeccafd6b9391bbe5ce4c8114daa48502cabd01c9b. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGH1774916 — a six-check JSON result.
Psalm 73:21-26, 28 (Whom Have I in Heaven but You?)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6f854298d675c0d0b7f7ab4d70d48aa2d5ba88376b295e62a37aac62f587d6a. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGH1774917 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b4cb3a98264dd52bdd17c642804df1ad878629f2943a0618d414a645cf7df4f. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGH1774918 — a six-check JSON result.
Songs of Ascents (Psalms 120 - 134 KJV Scripture Songs)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x733c68cdda352bdaf9b43cbbf93065ba75869ebf952b3a6af5c552652422b008. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU7628486 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f1131cbd6985d61796f28528f6e82c168e1d8c6ca59eaa3be355438cfaa3669. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU7628487 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31a3c7507253a72160d9e39812810f0d00659eb061de1094bfc68273ea0c0d2d. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU7628488 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ff5a7c811ad55c1e771ccb1c0864c816a3ddcb0b3c6d20557b479a96c06328d. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU7628494 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00841ccc589aebb1e7071c71abbf4619ac5efc61a073f5b9832fa6f90e499daa. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU7628497 — a six-check JSON result.