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 0x8325f48ce7724e76688cf834e700bcf72d56bb269c7b6575e5fa3f22d51caeaf. Chain 2 (Bitcoin): anchored in block 953786 (2026-06-15T12:56:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d6a19f43-376d-4d8e-9f6c-83feff6ac1e4.json and https://artists.proofprofile.net/proofs/artist/d6a19f43-376d-4d8e-9f6c-83feff6ac1e4.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf53d425deb5cd8bf5256cca4dcf982e5ecf65bb9f5eca4bcd770aa85f012e6a1. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/ZA8124000009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fa687c73da309165c19501576d902a317e6bd3b860e9ce486f7a0db61a4ab69. 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/ZA8124000010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b29b9337b9028bfa8e57f3a02896bc67f458adaad4717ced494edc39167a54a. 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/ZA8124000011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a88cd3fb088b6939934f2b81c148f331de06909b9530b210a5fe821e91f903d. 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/ZAC012400945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf06b0c322278f8592c881d017e247681a366dfe6783b8bc6ec10428c8d4ba05. 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/ZA8124000023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56a365cbb8e2a91b3507c73df52bba5ce50c99dfb1d42a4043fcc853af431e30. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/ZA8124000012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd13f587236be52c5911924971abde57c0d125a30054cd4998096b3d371837012. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/ZA8124000013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36b476b89510173f96d86768b185472de560f0cc2f04ece109154aa04f209b6e. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), 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/ZA8124000014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71ad52f06e660af43c9d820210144013fb3c729008832ae49b3627ffa89ea221. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZA8124000015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14dd4ed017badd4f77c9b46212be3226dcf9536baaada486db804d1cb328fc30. Chain 2 (Bitcoin): anchored in block 958720 (2026-07-19T10:53:46Z), 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/ZA8124000016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f7d99db73f127c84ccaf6ae331459c2fbee08445b12daf45500d829c23297fd. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/ZAVB12400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ffb27652ff3428640353262e1d2b89bc504e69d0ddf476477f1327459257834. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/ZA8124000018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0b20519521d36b819dd928156efcde792066f483f6a1f1db9c1209279a92b73. 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/ZA8124000019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6a026b5a73f64aab944bcf72301d3beb1e5848f68e99ef5f143bdd13255d337. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/ZA8124000020.
DO IT AGAIN/ BLESSED/ THE HILL MEDLEY (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa14d255e990b9d3a04d5b54a87496b933ca0e4c813d0d889c7e55c2fd4d9ef15. 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/ZA8124000021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe008956c287f5180f4e0f4da993a10f852e3074ba61fab69a8c59ddb94405f64. 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/ZA8124000022.