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 0xf98e8694a617b5a5ac67d4519e5842cb38fed81b020114f3b4eb3e44a876e3f8. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/15a855d6-b7d5-4aac-9a1d-991c8526ab4b.json and https://artists.proofprofile.net/proofs/artist/15a855d6-b7d5-4aac-9a1d-991c8526ab4b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Wonder Night (No Puedo Parar de Bailar): The Remixes
Sweet Disposition (Tribal Remix Extended)
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 0x2075d3793a9ae167db72c820aa70407b901211f69766ed13067d603a78315f0e. 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/QZNWY2461755.
Déjàvu (Over & over Again) [Remixes, Pt. 01]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a9e9d695ea338d1e0348a15fc7589cccedd886066ad592d0a38a73764403371. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/QZHZ62217738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaff6d6590d6e8cda441653e37e95fba53f1300ecad45c582fc37d2cc09df36ca. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZHZ32002175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x460d29504c96b5e185e193a4cab4cb20c22812d90f7c5a38c10b515ed31f3277. 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/QZGLM2090032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd070bc2067a13abd47948c51fc5036b5c522e0f3152b19b0832997eeaf893c6d. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/QZGLM2090033.
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 0xf3107e825854b4165834494fe624fd9cce6f913ddb692b8b6fc17481bcda1e74. 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/BXTJO2100078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb05312931f1f4d84eca7028bb2846e17c47765f6eb1e776332a9a30d120546a3. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/US7VG2287171.
This Time (Leanh 2K21 Collection, Pt. 2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x667b35d27f129ca9115390cf4ad221524fde3c2e0559ce22adc6f18032b5bce3. 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/QZZ8A2486030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6c32a01913adcf2ac0bd617b4c673aa8dc8e4b9464e8e87884896bb8244f2ac. 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/BCLDO2400010.
Dropt Einstein (Just Love) [Leanh Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb9320143f6d9476b343cac4e40d6573aaf5f01c5632ff883e598adaf98f5fd1. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-16T13:59:53Z), 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/BXTJO2100037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75e9ca4ff094d755c0ddf4cd7779b1eb540719574b500d6c0b1d8162a0424369. 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/QZTPX2112337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0655581e4b219bf458fec60217955dd4fd62c13129deacdece75c128ea85424. 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/BRMQV2300014.