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 0xcdfd39c0409ba28053a4646f6a947e7c54e2ee891c67094d44fa758999a44834. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/08df4b2b-9a3d-467b-9035-085a9849717e.json and https://artists.proofprofile.net/proofs/artist/08df4b2b-9a3d-467b-9035-085a9849717e.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 0x32df27a28e32342968ed5ac7735259f434fe83a840ec2651a71df26397bfd2d1. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DEBE72100626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68b1e6b96ae742ab2da96221ee9a3eef905723e498a7cbdbc53c15d9df0f99a6. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T19:53:18Z), 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/USUYG1591142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d3045eda50400e63fa98f962178d8d2b722ed3d3ac26ebbddaa958bed9584c0. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/GBKQU2521755.
Get Physical Radio mixed by Bákayan - Intro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b332f3559f3fe41ff6d99f877f7da814028581539a5472903c435386bdb407e. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/DEBE72500371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x615ef9b24507ddca9cf56b5496425d01ea7bcc0036c071be3905ce17780a9cd7. Chain 2 (Bitcoin): anchored in block 957776 (2026-07-13T00:05:10Z), 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/DEBE72500372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc1ed1371e061f4beee9fbc9a03fec4b601527fdb366b87d173ad20dc9b631d6. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/DEBE72500373.
I Get Deep - Roy Rosenfeld Remix - Mixed - May 2025
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ca15d4223fbc1b52792ecf5d74d99627e8923d149e630db832635cf8b953f61. 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/DEBE72500374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca815113a2a59c1a8cc1c1919ef2d8317e02e27bd6f9b5d889a2e9a8e7662b30. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:46:49Z), 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/DEBE72500377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1cd1ec2cd31f52fa5431aba946ea84014d66ee85a5bd768bc0ff1d184599904. 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/DEBE72500378.
Let It Go - Original Dub Mix - Mixed - May 2025
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03ba39641ab5928967b5c3da5556f3035507523c05f8a0a9db4408cb2ca10649. 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/DEBE72500379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6512a025b242c30542b3e5839ef435295fa4515745104bb6c8f69580c3e061ec. Chain 2 (Bitcoin): anchored in block 958087 (2026-07-15T02:56:49Z), 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/DEBE72500381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9093a330ecaaa856ee066a789cdb19cdc1f5ae9b82e3e0e90053260790c8018f. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/DEBE72500383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeedb172757fa8c48f400595f67d0885781f3c2e44be21f34698dae45426c5fa7. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:56:54Z), 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/GBKQU2543633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecdd868bfe52ad99d3b126d961fdf8f2626fb2f54d085df46464e119ddf1983e. 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/BEN582300929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bc4a0c9e618168854b3c8ef8df5ce2e6ac5c349dd8fa0aa511fdb48e238483d. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/BEN582300930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b5ff14c185312baee5a36b17deebed6aa4e9ddb13f51852b3ac63f4507a87b9. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/US83Z2332859.
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 0x46217255b16e369faa4249f9c81d151005b2319dd152e7c5452310d6c260f4d0. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/US83Z2332860.