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 0x8867bb78c9e661dbe493873c0d1219945dc70534114af647e042ae20e942e554. 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/dab9c77b-1bbf-4f4e-ac79-7b1fca91d115.json and https://artists.proofprofile.net/proofs/artist/dab9c77b-1bbf-4f4e-ac79-7b1fca91d115.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 0x2db9e0a765d7de213242201e710e167f3646863c6a18dcb468a06da1f7dacf5a. 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/DEAR42542802.
Dirty Bitch (Marq Aurel presents BB-Project)
Something (You Can't Be) [Original Edition]
Something (You Can't Be) [Radio Edition]
Something (You Can't Be) [Remix Edition]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbe1bd2c1f8fbc47b9f22ce58572124323ecfed48d317eb5f0c5f579bd6cb15d. Chain 2 (Bitcoin): anchored in block 958731 (2026-07-19T12:35:36Z), 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/DE1JN2418114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3ba843672ec30646276ade0d51acf16c86a94586282cf76ce25fd761692487d. 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/DEAR42557162.
Clap Your Hands - Kids Likes It Hard Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7efd4c0de1bc5b23047e6bbec580f4b8cc5a702dbb434e50bc2def876e3c43e. Chain 2 (Bitcoin): anchored in block 958756 (2026-07-19T16:12:29Z), 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/DEAR42557225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9539633006e64898257499faa437e5860b6d263082945ebe96da0d7437d4a0ce. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/DEAR42549981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x242f856913c7b4ed1abae6e9302b1d3efc4b7f4c65db8b98b9402d4954aeda00. Chain 2 (Bitcoin): anchored in block 957778 (2026-07-13T00:08:48Z), 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/DEAR42535864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdaea6d70504726528b8e4f376025832af77bfc6ad58fdf49ba405fbba576257. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/DEAR42529265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbd56b6cc5b54164c5a7e4d16bda20deadbc83b817a9a05928cf8bdd65b2efaf. 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/DEAR42521635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67758ebac33192d4f9fc9eefb719171e8429a21c0f81130890dfbc3364a02185. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/DEAR42521724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47150ebcc89fed901c3fe1ad290cfdbc66b43def0f35daa775c6ef5788fb38a1. 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/DEAR42513858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4fa1d87d24dacc7c3a83a15eb4d821a0af2d89ebf4e7dab86babd17b8125f99. 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/DEAR42511534.
Solemba - Marq Aurel & ClubSukkerz Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea01c4014a42135083304faca89c5fc4ac87f8dfacbe315566b75827cee5231a. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEAR42511136.