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 0x49b4d9f886310918f2696c3e2c173875cff4af879a445fd10a9ae3c4ee8a1761. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8934f588-72f5-4155-b5d7-f5d935806096.json and https://artists.proofprofile.net/proofs/artist/8934f588-72f5-4155-b5d7-f5d935806096.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 0x25339efb2266836408efdfc54331061de96d94b6db08bdfd1d8820294a2fbb43. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/ES71G2327089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27145650678b768eecf0ccf0f55ea2c0952d373004de0660d77479f98824fbdf. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/ES71G2329435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab87d79f0a517797044454ae2d38f7fdc4f6a996907028d04bbbce4aa1df43b8. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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/ES71G2332305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c0586a00d24a06db147020df7f756de5204bb56aa684bdb28e7a4a22aa0c5e4. 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/ES71G2332320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5df1f44c8dfd83aba388c5ffa865c33310760f08fc0d80273a14dc2ef35a5ee9. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/ES71G2332312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbc5de2552ca50cef3cf68c0d873fe2e3b40215eeb3cfd0859d8c6b0aeb2c060. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:27:00Z), 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/ES71G2332315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9017d8aa4de4f266b1a0c2324064456a10893194c21482edb4dcabd8bbc079a1. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/ES71G2332321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3ba9e1ab6350364e521ef20390690eff393fa033792e08c3ce6e01a7e0e5486. 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/ES71G2332314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb96dcc5d090b2cbc37e93b431a5b8d985c846cc6794065d1c621740a56a125a7. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/ES71G2332309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x425e154b5165cfb5dec8079568c0d9a68258e6384c39d6fda7650c135cecb6f1. Chain 2 (Bitcoin): anchored in block 957735 (2026-07-12T17:47:43Z), 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/ES71G2332313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x355c67d5649fa531834f97005e0e5d399564cbdbc70291994ac874c718c046d9. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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/ES71G2332307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40c6c794815aebad02d02e66afe52be5ed1c27cdf449b68ce4cc09d66fb384ec. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T23:11:27Z), 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/ES71G2332310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4492cf4e51cc765acdbf5ece87422d751e7ecd6ba96e487ffa44b10b133c0b27. Chain 2 (Bitcoin): anchored in block 957745 (2026-07-12T19:20:20Z), 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/ES71G2432494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x772e20694da4bb263fb8df0bdffdbbef747c48397c1c4fd7a33dd5b4fe49c7f4. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/ES71G2506752.
Mix Vallenato Romantico: Si Tu Amor No Vuelve / Hoja En Blanco / Me Sobran Las Palabras / Volver / Quiereme / Ay Hombre
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec1cf41872b41c3bca0f345a7029bc7a46a9dc1d5e791702a336d07690517c75. 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/QMDA62500234.