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 0xdc22c87a891e7c75ac931c1f7d3ab8c93c160baf89eb955d700a8e6fa71c592a. Chain 2 (Bitcoin): anchored in block 953625 (2026-06-14T11:37:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/29b14fb6-9ec7-444b-aa2c-d814a2694cb2.json and https://artists.proofprofile.net/proofs/artist/29b14fb6-9ec7-444b-aa2c-d814a2694cb2.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 0x5716bcc63119896255683c745e4e1414ace2e23851c09fc413c7e2efc81d00e3. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/GBDEC1300520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc4758ff84550a424cabdb20744a4a6328ef18a08fb0706b8289d9ee3dbdd2f9. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/DEDH71600016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x313f2a88d509056a652baad210a9098f162d8255f2c79cdfeb657b2573a78f3a. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/DEDH71700030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bb088ad298630317e6d629a47075527fff70283f56cf6ff7abef4feaf7fcbfd. Chain 2 (Bitcoin): anchored in block 956482 (2026-07-03T10:33:57Z), 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/DEDH71900010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba100c8b08a1cb42521b96e80bf94bcc0a86a601bebe0c75dcd15f806e782b83. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/DEDH71900012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3907c4bf008e940505ed07e8220323e7b113e4bbfe94adc562152f46273ff9a8. 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/DET752400020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaffdd86bf24adabfeb9964efc249b5573558644dfe9112429f753f2eeec94280. Chain 2 (Bitcoin): anchored in block 958523 (2026-07-18T08:54:12Z), 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/DET752400029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x902ecaf2ec32d6e8c5f6171156e872a2c7ae662273e2c9bebb09633c36ab5656. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/IL4612500053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ac2e0bce70d71bb0cdc7d6ca89b2ad47410a5a78e281188a97bb6fcabe892d7. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/IL4612500055.
All Gone Ibiza: Pete Tong b2b Andrea Oliva
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3dc1d19d1172b77da9cbcd8cf8423e9c436699fab01a14cee124a768c35e4a7. 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/DEDH71600048.