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 0xbb2c1523b2197ad5f5023f597aadfd4ff17173d250767bf355e85346f47d1138. 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/8790e555-098b-4372-8d97-688a783e7906.json and https://artists.proofprofile.net/proofs/artist/8790e555-098b-4372-8d97-688a783e7906.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd00618f8f087eb317805cc11518008f968b71bbf2c019a4d57f51c186c977e0e. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-16T00:39:54Z), 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/USCGH2188702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc21f81ef905d0b9457bcc76ea281ce87f94779fd9670bc8d360fdccaee19a429. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/USCGH2188706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3781948061bbf17355983603761e6ad85629fcea25927295d9b01716832d2c1. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:28:23Z), 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/USCGH2188709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0899bf12ab09dc5be3053ac05e6e5d8dd16e2b7d19a4362eb53e8d7945cec1f9. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/USCGH2188710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23078bbd33e7cf2fee38300bd8fa2800ca4606e16b5d0c16ed7e9a08ab138cad. 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/USCGH2188712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f93defd4197760907126de754bea8963722099fc1ec36aa199dc028c78765d2. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/USCGH2190968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f28b80adbf719131073471970d080646416d0e1ab57d1b92a0d46ac8ad8a7b4. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:03:56Z), 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/USCGH2190967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb577b2142fe6590632edb76a076588818f5f8f48dcc74b9379ed9a105c2ea7aa. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/USCGH2190969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd711f36ec3029e0a32d9cb0c1f739b29d5f30879078d509d58fb3c46cf1fb718. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/USCGH2190970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92bc5f55911235675b51a728a753bc4ac48cbe29ea025881487aeed6ac83445b. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/USCGH2190971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0c50ca4416711951c504428cf5e73f30f6c7547ad00cbb1b74756cd532262a8. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-17T03:25:16Z), 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/USCGH2190960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06342870fbd2ffbe896a10ae19f4ff1d57d1a2c019e9d91767201b10ac9ffe3c. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/USCGH2190961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e27b4a509156ddc64b9beb6d951d46419c74c0dabbc4b09691032489ece9516. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T22:19:54Z), 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/USCGH2190965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa82179e63576723bfeee034a280ab67eaaf43c943908ae36cdfebce6f579f458. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-17T03:24:09Z), 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/USCGH2190993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10c6b166bfd188fe68eab8927afc761bd4a2728e22b1ec10c8a30f631398764c. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QM4TW2223430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x076cc46a733634373936d29a12d85392ecabe0b8062a27cca9451bb7ff339dd5. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:14:37Z), 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/QMDA62104600.
Nativo Producciones Presenta: "Florita Vasquez"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6c09f18d41c79f48728eca99285a599da665a83b1c7961b9549fa6c3e6baa37. 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/QM4TW2243780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x097073b8f096de30a3114e54c25b6023af1816dc8108673abbd38bbfca5688fb. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QM4TW2243783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2149539a78ac595ea2fc902ed6f463c81e70d75f942d65c2777be9b30e0e7bfe. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/QM4TW2243792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c1a9bd20da27e6e352c8bc82359627a88064e33b91bb9aa3399c77a2a899a1b. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:13:12Z), 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/QM4TW2243793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde879fee059b1dbe4016545734dfa725b0804452eb32e15b6f61a22bdaf37bcb. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QM4TW2337964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31a0d36d4c9b6a06be3756d6a9732696246637d3a160a4a710f2f80ad5c774a6. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QM4TW2337966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x488ce6eef3592ddbfd9d5f1fd1c08ce48e77e270ada52a70d150c2226bb6386e. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QM4TW2337969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6a8eaa9099a4f808e0694c1ab04c27d981478e58fde06796c779e72abd4fee2. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/QM4TW2531433.