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 0x50356ea5d9f6b9545ef1a3e112e553a4387837e38e7f68920d22fcea8eb2487d. 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/07118fb1-2425-4b0d-81e7-a94cdaa92b6d.json and https://artists.proofprofile.net/proofs/artist/07118fb1-2425-4b0d-81e7-a94cdaa92b6d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x164f23ef7251e4dec84715b25f2deaced4e944aad2fa6202a1385f4811cc930d. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/USDHM2113873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd839869a9c72054102e8825dc69bf9df144cfd43f75988e082403b7d68d0edad. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/USDHM2114986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x164f23ef7251e4dec84715b25f2deaced4e944aad2fa6202a1385f4811cc930d. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USDHM2113873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd839869a9c72054102e8825dc69bf9df144cfd43f75988e082403b7d68d0edad. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/USDHM2114986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80b73c5aaa118446b2665d49f55bad8615a6a47d12a85f1a4e26d697a8e31f7c. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDHM2118635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x582db904f4a8ccedf33fb54b06dd374d15ae98901c176249832243766ce50c47. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USDHM2118636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5434e4460a042acb7d7c2195242f51c4508847e5957dac4ee2320887b2cc67dd. Chain 2 (Bitcoin): anchored in block 957546 (2026-07-11T09:35:53Z), 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/USDHM2118637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1903cb75ea5eacb3429d19ce5b961341ae54014923416e727713996f1b8c934e. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDHM2118638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32e09e942b8c997499b4f12c01754cea145c1fcbe89619773b64c74eaf48efaf. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T15:22:45Z), 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/USDHM2118640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x360cf10c82e49e3e2b1d234d1c89c90a7183854e9e8c039ba5643aa6678c5f7f. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDHM2118935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x360cf10c82e49e3e2b1d234d1c89c90a7183854e9e8c039ba5643aa6678c5f7f. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/USDHM2118935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ce59047e3fe828fc6c2ff006765b36adc7eef9a8b3c42290054200c52d7e8da. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDHM2118936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57f932d8cdd6f1d7aef4cbb66405d7c36c321b894c0ec65b651e5e8deca564c6. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), 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/USDHM2208404.
As Loud as He Is Worthy (Psalm 47) [Live]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x945f5f187d847cbcf599906140723809b58e5b73ce2e1dcb3d6c8a9cf1660153. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USDHM2407913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cdd67c2712c56e68ed7c0fa99a381e9ad6b9ee74c84a8823630ed11b296a7ec. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/USDHM2501690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48e67f31d7b109c641e667c3187ff60a8a5cdc4018db90fb152732edb73969bc. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/USDHM2503536.