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 0x77ec1c79e405e8d7772fac7ffbe4cda2c1bb3ce9f366d169c45ad4d97492e517. 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/a0ba3735-f9d3-45c4-8add-a0c7f677b9cf.json and https://artists.proofprofile.net/proofs/artist/a0ba3735-f9d3-45c4-8add-a0c7f677b9cf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Esa Morena Le Gusta Mi Rumba - Socca Remix
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 0x800115973c3a240e2702ea91376132fd94c45c9b2d126071fdb9d8c3dac5ac36. 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/CH9181100176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x800115973c3a240e2702ea91376132fd94c45c9b2d126071fdb9d8c3dac5ac36. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/CH9181100176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4a474dcaa5ebbb2cc1683b464d8db14b611dede8ec113d2d0eee5b61c5b6bbe. Chain 2 (Bitcoin): anchored in block 958585 (2026-07-18T17:05:16Z), 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/ESA011535713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb51923f4bff4ecde4526ec2e0665c7770a4becfd7a6c2129297f3c3d1c3a43e. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZHNB2258893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x575afed1e4f73006c5ea5fd933c88398c07171afce6b474b2b9abc5e0be75957. 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/QZTBC2484371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x575afed1e4f73006c5ea5fd933c88398c07171afce6b474b2b9abc5e0be75957. 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/QZTBC2484371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b05eb7cf9af281b0fb8f602d36dea493ea188d7d4dbee4f04d6cebc0099d794. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T16:00:23Z), 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/QZWFQ2452955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08079b1681991c9c53e6336d25fa5eea18db664b83b9d5cc83947264c5f8243c. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-20T00:08:25Z), 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/QZN882536382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5755cb04a13313b7a7f0c11995711893643c95e797e5313d52f418cb8995d90e. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T11:05:53Z), 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/CH9181400600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3972d89b7395ec698ad5634e4e44435b1ab24213f64fb044315e69c966d35085. 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/US5S31000033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd08d53e67408b4dd6933e01f7e28b98501c69dc99ff9c1080cb3107d58898c7. Chain 2 (Bitcoin): anchored in block 958706 (2026-07-19T08:50:34Z), 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/CUA021309263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27897a5605e94b9cc6fa138abd8e9d3da3886826ef21948e0e51c37ec21cf87b. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/QZN882537355.
A Lo Cubano: Súper Hits Bailables, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3f0563169a16525851a4a920e4b8c445479b483e1383e2e1a5c470004e7b224. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/CUA021309258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x877b9e987845ea5d8b05db230c09e932a1bc8fac23bc6b12e3c5b043a0cbccee. 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/ITF250800185.
Latino 29 - Salsa Bachata Merengue Reggaeton (Latin Hits)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x877b9e987845ea5d8b05db230c09e932a1bc8fac23bc6b12e3c5b043a0cbccee. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/ITF250800185.
A Lo Cubano: Súper Hits Bailables, Vol. 4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e7d5295bc6e1f60f865dc7f18fa8f26594f7bbc41b54e558609f3cdbbcdb0cd. 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/CUA021309266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b39eea3875df0c88baa9e095516ee0bbe80292967e5140801894d327d068ed2. 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/TCACO1638393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2a51e0f707e7b4e1dfc1ea4cf40880e08ca02e5baae9eed8b69bd160d2a8a13. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/ESA011767876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3424fdcc88c2acef9b42ceabb008e8a4d40311f34d8fcc2ee4e91511eff2384e. 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/ESA011767878.
Super Cubaton 2012 V2.0 - Reggaeton Cubano
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58af744712d1082728f47209f8f8ea90b0ccc16acf4afbfcbc9b6194d6ee082e. 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/ITF251100102.