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 0xc45d4ef6d651d18b113f9db3890263ef35a5551660ce41564dce1fa02db24f6a. 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/2184aefb-7e69-491d-a946-f70c3b994e62.json and https://artists.proofprofile.net/proofs/artist/2184aefb-7e69-491d-a946-f70c3b994e62.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Live Sessions Vol.2 [Mezcolanza vs. Aitor Ronda]
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 0x2d52438e3f0fbe281a2f1cf2e3f24a2c8d7c2f4bbcd7629bec4df47e240a89c6. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/GBKQU1790133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d11ba0dd184ea4cd077440b8f0dfe74196a06b2238992331d161dc4ee4b7252. Chain 2 (Bitcoin): anchored in block 958850 (2026-07-20T11:19:07Z), 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/DEBG51800000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x150a1b33e3fe3c0c9bcd78a6781c525e8243ee267f985443856efcac03b1fc20. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/DEL021902028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57a57e5aef2374882385611247657eef31abf8f85a7f4858d709d1219a684a41. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/DEH742224034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfffb0585a39a231397a2257bbf27f26224a6ccc2bc9d1640c169c2e3009727ed. Chain 2 (Bitcoin): anchored in block 957056 (2026-07-07T15:15:30Z), 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/DEH742230765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d466b0fe62c78dac14dacdf93843822c263b275adbcf4afd72292a01f98fb35. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/DEH742230766.
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 0x2fac52acf7918e2338d59dc5a6aef5f557b61a870e345cc781db88db00828031. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/DEH742230767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dea45cc59298acf10d7d099cc8bc31fbf758cda46cecf0956430d67cb9d410e. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEH742316118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x067340c62100005e83fa55993aa115b497a4f78fbd81328fc06d45cd879d370d. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DEH742423535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x245d1989b83ce9aea2baa1a5135894ac3fa06d12cf0356206f8ee5b45eb5e466. 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/GBHAD1801406.
When My Heart Beats - Agent Orange Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cc4b9790b39491fba62113b556f8aa0a46e0c34cbf660996dcafc32505a958c. 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/GB9GW1600107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa522aca2df0b3c473b5f7be5d444d39f46d20fc69c94ac52cde58add7235ec5f. 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/GB9GW1611008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05a48ea9869814e25583ed2f751765e4bb8b399e9adb0e855ceafd1bf3a302cc. 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/GBKQU1841017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce97d8accc46a303c3aad977d5037e54a21a877c8638304f3174f26d96f3e26e. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/DEH742039646.