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 0x7564b92251a09bf58b3cddc5ad722df65b576cb6a6d1b188015f46f9dbae87b2. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/68020f01-32d9-451d-a741-e0fa6bfd3518.json and https://artists.proofprofile.net/proofs/artist/68020f01-32d9-451d-a741-e0fa6bfd3518.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 0xa3f8560701ccdd292fe7f41a5ef07ab2c99d8ab0a68a36f1d07a27e086290c9b. 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/QZNFJ2201925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x602e150466dd7ae957e8491ee31cf772c394aa089b166a3940868b78653a2772. 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/QZNFJ2200066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a5c34da225557ee63be9a8323d9416294b8074b895161dbc17f63e2b4ce081e. 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/MXF152400388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a026abfa7e529740bfe363508c550686cdc076295e1fc78c02c3fd84113d4cf. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/US3DF2411579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x585feec0ced3cdc746ed2da21e4a2758fc2b28414a7af1b963b7e6971ef0c30c. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/US3DF2419927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95ce92a22f08962fc0878a744567daea3053ea613ebeb94776695ceaf4b507b6. 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/US3DF2417228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1d55b6f76c9af57f8141ad6dea5fe334c75b2338fe0d59798f29099861e334c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/US3DF2415161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4945537049a659711331c7c05c04557246f569de95b377a830a9be77e6c53a6f. 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/US3DF2409224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc576ae9d3a7a851ee4a8db4879a74db709ae1354ea06435acabf36f6d624ddae. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/US3DF2404431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9567a4792d8d1fb1a79d0a11359d7526b3129e1d32db02dbd3b9febe922a7af3. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/US3DF2402855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7486751d93f8d0b4ec86d55f7e62c3162cf6cf17facc7fd0b5d8a2f9c7e4d4a. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZDQH2393139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ac788910826210694f8d95d0522d0af38ef8574b1930411c9599721bfb5afff. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/AUGBT2362665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ab24b43f5ee3c7e84c3dafa38c8852f0231902e3f82f37a11b532e37f12241e. 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/QMANG2221992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6a4e0b3de94e764c906f828bcba5ec39240a469b1ebbfbe87bc118cb9eaa22b. 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/QMANG2214772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb90b7bc56180cc0bd0af9f937af203a772060b2cb1ee134ea58784aea7e3b58b. 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/QZDQH2376701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc607c1b53e93660c00d176bda73f21419c7c699f2ebb96da16a88a31c64ae42f. 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/QZDQH2369505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7505e26bfc8da86ce8ee262c490ea2c0985c802138711e53ce070d9ad9eae2bb. 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/QZNFJ2300933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x413073787263d1d6bd7532ae20a2e4c1d90588953317f84c03976370d3b18492. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/USANG2235265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad934e0342802a6ee7e597c8bb343e015d941afbe90bdfa0722b49e5d3af87d9. 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/QZNFJ2200012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95fa3bd62a09e3134eb430d7c5f4ccbd753f4a1a7adb795fdfd575920c2e85cf. 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/QZNFJ2200010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95fa3bd62a09e3134eb430d7c5f4ccbd753f4a1a7adb795fdfd575920c2e85cf. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZNFJ2200010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff4a668f00a2c0b6f6c8964c3eab5e502294938f8be831028d9f65c6846dd74e. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QZNFJ2200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8801e7e8ae52d9174f597a8305168502cd68083387bfb409ce35ea92aa24a77b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZNFJ2200013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfd737282ddadcbdec0febc122e9644c0eec76d0d805b51dc340a180829bab8d. 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/QZNFJ2120853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29258e4499f8f475ecdc017c25f86557869c476bd911d91231911ec6bc3ac9ff. 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/QZNFJ2118750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13a64f6065f50df70afd5dcbe317b45344531ec2a886aca3b173cd896aad2f24. 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/QZNFJ2118749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc82f102a39344dc56a089d83ddcf498f9b6cb79caaa9589f3e9e9f155c5ff63. 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/QZNFJ2118530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67512ad4a8fda09c9794171d6d7ca64fc0c92db5e29aa7a0a8ed5dcf8e345096. 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/QZNFJ2118745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x717a2c637394fd0449b944835463a647b421fb8618ce6c29ce368f116b51a9d1. 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/US3DF2522758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7881270fd6ee1bb00bdff4d2b6e1cb0c127e67a26345212225623275d9e31bd. 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/US3DF2520902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27423b0ffa3e03c6ca919f8d3f7d0858f65e5dbeb880f9f7b77ae7b19ce3f364. 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/AUMEV2516483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cbf9971fbc15e61a0ce2c71e6d876f74bfea9bbf6af741e8220dd3fad266484. 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/AUMEV2516484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42cd5756bfd77f98675ba122fbe0d069a32824bd0a6806b9b218953efda8a9ae. 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/AUMEV2516485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45df237ee5e194a5d061a4b63be6364ddb8e595c7c28f7518c03823e8ef9be6e. 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/AUMEV2516486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x748b46a2ec88dbd1f909954e5c949499063133e097923c756545e9dfa5892a81. 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/AUMEV2516487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fb54dbcdf6336bac6c458dba47c2e3555eddcb9b57579f248ebc9f5e562f091. 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/QZDQH2424656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7bbf6ffc84e293318bbdfb54091003ee3adde0d7e12c070f9884d013a0b2c73. 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/QZPLR2479397.
David Santos (Audio oficial) [Mentirosa]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eb14bce51e564066a74ceafa21cedb8a342d20508e90e99d55ff903e051fd16. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZPLR2479396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x819c8629d79dc34d73226c468c3ff52afe925c219ba0e5829f9b9c54d003d71b. 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/QM6DC2098575.