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 0xac036b7b9f539ba50a9e624b89204ea3725b04c9dd7edda676d697b415870f14. Chain 2 (Bitcoin): anchored in block 954615 (2026-06-20T22:44:50Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c515afb0-994a-4993-bbf9-185f1c2a9440.json and https://artists.proofprofile.net/proofs/artist/c515afb0-994a-4993-bbf9-185f1c2a9440.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Modern Jazz- The World's Greatest Jazz Collection, Vol. 61
A Love Supreme Pt. I - Acknowledgement - Take 1/Alternate
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 0x077eab74cc66d491e0bdf022ea89e1247e66e5f8fd52d033a2f575c6ee9a3d60. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/USUM71515189.
A Love Supreme Pt. I - Acknowledgement - Take 2/Alternate
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6169f4c818717cc051a23ef0f0df8111e5c23fd423c873d5430f6e5719fac2cb. 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/USUM71515190.
A Love Supreme Pt. I - Acknowledgement - Take 3/Breakdown With Studio Dialogue
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32b5073e76d7bfa39561917f27aba99c102df3a3bbfb263da168fe650e7f3dea. 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/USUM71515209.
A Love Supreme Pt. I - Acknowledgement - Take 4/Alternate
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd43d05cdd185b0c92b0b8f4454cf49d290ac9d8c20b8dfa0eef8b55693aa7285. Chain 2 (Bitcoin): anchored in block 960314 (2026-07-30T21:00:46Z), 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/USUM71515210.
A Love Supreme Pt. I - Acknowledgement - Take 5/False Start
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d5e34325a09abd2525f667cb84cba534f378f57bd5829c6d47911cdf440c087. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/USUM71515211.
A Love Supreme Pt. I - Acknowledgement - Take 6/Alternate
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3bf3409e5bfa0fd857b2a95fc7de94158b793add3ea3378c83622016415a5f6. 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/USUM71515212.