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 0x4861a78b9c362bd3fa6187d742ab9e813d99973d0ae9c96cc9117d304234c7b0. 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/a051e857-38ae-42fe-8c2b-fcfdff2d7575.json and https://artists.proofprofile.net/proofs/artist/a051e857-38ae-42fe-8c2b-fcfdff2d7575.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 0x8f0fd0d23c5e5cffd1f9b8b6568a6fad8fcf0d593c2bb27d2b1fea93a0c5562a. 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/USASN1602650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde17388db9e564edbf868c119a778acfc85a03a39568c774d77838320cf12089. 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/USASN1602655.
Mr. Knightowl Presents: Fingazz - Classics For the O.G.'s Volume 1
Mr. Knightowl Presents Classics for the O.G.'s
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebea7e7c180424261eaf9ed25fa80191f608851f7b39606363db079689316592. 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/QM78H1400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4fce443172528ffdb37cbdfacd7c61e488e32d818609f73dbd2c49f597246ba. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T11:36:23Z), 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/QM78H1400016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc44b9d7ede12efab20b1d9368f15de32d142ac00910678fa87c4049a917fe24f. Chain 2 (Bitcoin): anchored in block 958506 (2026-07-18T06:14:51Z), 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/QM78H1400020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1d53a1afd89af7406e24e43c1034eddec677b59881a8be813c7aef817ed7a34. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/QM78H1400022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x949f651c8f2703b7c655d39663d1516a5a3ccc03eecfe76e0573d7a4a1d9438f. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/QM78H1400028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a0b9f7af385706390e306c6c376c057033c0f6f596568601e646762b02494d4. 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/QM78H1400076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc10396d803af1ca3d83d3c47172e1571832f4b88be159ada8cafe02dfaf5f7d. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T06:43:46Z), 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/QM78H1400036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51a06a7ed0b406ed349d0a569d86452e899f1e40135a30ea69000b47135636e8. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QM78H1400086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab3b40ee48a63e5fcdb65130692882763d21a5fb75d7dc1f4e792f845375f8f1. 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/USJKM0704215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed753ce5fd564869006aea865d2ca80c00cf29018871d32cc6454d677401a6dc. 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/USJKM0705103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe77ad99486304324195128b8302a33255ff3fbfa8b013f6a0abd462b7da3d8bf. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USPRZ0810114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ab9558c1e367616f431fe61dc49c4a9a2262cd943b265ca3162411f5f0104f6. 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/USCRH0710060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x428a870fbaf8b340a02bbcbe1384579e018f41dd30155e8db240451cbcb6c38b. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USCRH0710075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa48a6fab545ec67201669b72e8bf4dd009ab7ed33502da70b34c6f3150acf233. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZES82236453.
Space Boogie: Smoke Oddessey (Digitally Remastered)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d4b5918ee85a25628e71e447ff5c6bbadd2ec0fc2885af0f4dad099ce9d4697. 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/USGZ21243260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb70ddaf4c07c54ffb2b8b3be05c4f28e49f1bbe9ad832c5fc4f970b2ca337771. 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/USPRZ0910179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03490d3fd1ddb3ff6bb0b971e8218c88872c92c91f07d6440b8b3a4f77f5c529. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/TCADW1806719.
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 0xa2684c8ee2ff3233fc491820b20da44e892b26af39304103073af1fdee63ee97. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/USPRZ0810014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4af4fdf604b4fc71f361dc361e32a26b4bf14d99c89ec3aa9478d4f42a92dfeb. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/QZES82236455.