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 0x5bdb36ee0959a37b09954065a701987b9e93925831e55215c67c96819b7138d4. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/00ab0b8f-63ab-4171-9d0c-98f14268c727.json and https://artists.proofprofile.net/proofs/artist/00ab0b8f-63ab-4171-9d0c-98f14268c727.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Power Circle (feat. Kendrick Lamar, Rick Ross, Meek Mill, Wale & Stalley)
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 0x0597c24cd03df81a74d0b98400a54ee9886d8a91848b15e7ac059180fb37bf40. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR5R00903284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x194e406f6dbf31199b98dbb5cfea1403d1500537f37d564f8998df12bf3678d7. 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/FR5R00903288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5577f34b942e3d91790b0bc7a20731d54e113c4964508b5cd9bb76ebbe429a7d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/FR5R00903290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeeaae288ce9976b109dd816329d7f890355cac4e9b59dc45fca4b9bb0c1bb8b. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/FR5R00903285.
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 0x61cdfced6e0f2a56916f836fc576cbaa44d8fee3e60b4d3041afede1dc210513. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/FR5R00903286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44f180382c4cf20c53366e71cb5371d45fc2dfeca31d80362027212d62b1a237. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/FR5R00903287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9572a348dc9290e92eed5395764b4ba2b590ef408b783e67bc50a13d1873ca53. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/FR5R00903289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e4c091fc48b1964669209c037e937afbad10da0ef690ea5d75b9a4bcac36fa6. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/FR5R00903291.
Ball (feat. Lil Wayne, T.I. & Rick Ross)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe92564add32ff2c283683109d1c80b2905718da28c7d4c7858a6b1d941f9e24d. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/FR5R00903293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91d7d2447bedb6662f38fc7cbdc88c7879992e138d1e714276752bc78aa54338. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMEU31911711.
Ghetto Symphony (feat. Gunplay & A$AP Ferg)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf38a37029bf280f119435c261e1c4e701c266783cc8081077bb5d261d5fc2cd6. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USRC11201469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x728a65eda33b469b8df2ad75aed85aa4c8799ac3218448bcf8d5cb92fe9f1ccd. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USSM11904563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb363715ce8ca2a73cbccbcc64e3e592a5b766b1e7fc54fbe621bb86420d451c. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USUM70958213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92267e3b99ea5a04a1dbe4e32a45c4011590a0d70e4c55f40971f20e3be1159d. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USCM51300100.
Rap Game, Vol. 2 (The Takeover) [Frank White Presents the Streets Headbangerz]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6187f4992eeaed8450ebd689fb55b608abe9c36bb6ed7af59feef428219c5e49. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/FR6V82658952.
Same Damn Time (feat. Rick Ross & Gun Play)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe265b43a30d3c7aff6cc36e8ea90daef07c69d08b769cbdf7d8c7fd6e5ab0a04. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/FR5R00902195.