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 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 0x39ca6bcb7661c04067cf06d30b790e02f69a860fa46c074aa36e05e3e1383fd9. 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/f5fd83ea-7d09-4283-9155-d548f531174d.json and https://artists.proofprofile.net/proofs/artist/f5fd83ea-7d09-4283-9155-d548f531174d.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 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 0xf1a5fbdb8f6436dd932cc391033c84a8cdc0663dedc19acf628248496e80e417. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/TCACA1413350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x857f1e323fc0738fb6953f8a9ddba2d9e509f6c27fe5f95614aa43b20f8fc1d8. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/TCACY1788070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x857f1e323fc0738fb6953f8a9ddba2d9e509f6c27fe5f95614aa43b20f8fc1d8. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/TCACY1788070.
Hold on We're Going Home (Bachata Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c3bd8d61a5de4e13c57e7538afb8564c4ad3b6b6c17bc6e5f9e2184c25b5fe4. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/TCADH1759140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1912d6e4f12911a6697b30b71a7292a3a261a87b8436843d9931078ed102663. 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/QZES61922979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62914a21645f90a6f04d4802aa853c82773da76d13ab2036328b1bb1172c3d25. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/QZFZ61968143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4384b39f4324cb8b17ee7f4ef4efb58477a539373282d6d122ffe2502b13685. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/QZHN41973505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb68af9b9c970257c2a18affca262d9d2f2023384f1344abfbe4ac05c0793ccee. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/QZK6M1920835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c62724123b3ea6a046810ef65c453a144a352dc667455e9678bb76b357a02c7. 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/QZK6M1920836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92711b4e721b753518b86b3b68a2387a07f42e5114d76f7ad410b6cd6436bcf4. 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/QM6N22093050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf9a3842b9317b408ebca82b7fc480d1485b1e54a34604ec6333d26788376fe1. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/QZFZ72030354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89c3fe45a36c37b3dd0c09a177548aa36e48c2885f58ad0666df0be2fcbc4ea6. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QM6P42089346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x211f0ffb8130642e963b62d6ea12f5140cfc7ff4d4af9bda4999df076a52c6be. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QMBZ92076037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa81317c200c0fc9b732f1d42105f079132562be8326721bd6bd67d62aa69e996. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/QM4TW2197498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d2e71e7936cf4dfb2051bc212af7803bec69fe77e8d20b3acf4316ee8e4f91c. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T01:47:42Z), 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/QM4TW2197502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x671c568bacd3083d232992a9202a473dfa7d2d5fa51f61bf24fc2d08c2867b87. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/QMBZ92032188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x382ab7a398d16ec0dad33a41fa50b04cf3ddd15599edf682f7e51f2c3101d7fa. Chain 2 (Bitcoin): anchored in block 958432 (2026-07-17T15:43:17Z), 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/QM4TW2221741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08ee5edcb7ea145c47f4e9de829fda7c8f1dbf76577c61860077e67086ed61f0. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QM4TX2243781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d121186c55097bb01e08c223d69bbe18c36ccb53e808597a5e327286055a0d6. 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/QMBZ92281297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x279d774ee4bba454094ca7f2d416bb5b9178b96b8165d2934a775a8fbcfdb99c. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/QM4TW2355880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf12f05563794e3c399af2a6f76f148aeab4297d5257f56467fed7100f53fdc58. 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/QM6MZ2316660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e0d660d68f7146bfde57f838201096085399253687e2da651c33abb8adc35ee. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/QM6P42396771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7303d62106343902049061a54b4b8da8da2eb2f8706eadb067da77405b849e33. Chain 2 (Bitcoin): anchored in block 958407 (2026-07-17T12:08:48Z), 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/QMFME2343069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3912c33da82df169abfb2844fc8a6826a3f6a551e4483c57ea32286d13611f9. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/QMFME2389083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc99d51717e8aa89a0bb680ff5598b3eb88999e4ef6ab04a8e8996e4d7e798526. 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/QM4TW2480438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d8d8152c760cd4572ebfcbfdf7460e762528c66dc4f8a004882888a7f86fef1. 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/QM6P42435667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cce560c729290c27a393415ac443f7856aaccab8a079ae04eb7671b2ce0a56d. 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/QM7282487716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63aa53837cdb77af6e82040e4dec5de59543428f68d8e7670b6303a2c9651c4b. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZWV32455263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b2cf0f6511dccf6ebcb91c1d7ed30315adb016581290a11be33b09033c2e5eb. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/QMDA72447139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3b49adb2d9b2fb005a5f7aec1f37db07fc6d291761041aa0d896bcdb700f7ec. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/QMDA62470532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d676d1bf4f06742fda9feeea9088b5371bc4b9482cb7a4479248e4fa6146bcf. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QM4TW2518399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bca6c2d10b1b5842ce099a1fa3e0f32dd24e86975ac41318a5dc2608fe188fe. 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/QM4TW2518401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07725b9fb3ff416899e1177acafb132fb81f296f824415f44e2eb31a8ea80726. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/QMFME2475890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e6d6451c702991726518492e861c367b09a5f65dca78fb4c969c2cf99f3aae4. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/QM6N22598666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ba875cf624c1eda9c0fa17255477901663bd7e31a8ec79e47d0467cc7d14e34. 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/QMBZ92549049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad191c2da9188f6c719e59c37186a2edb828afdd1e77169c3af3fc3edc677b57. 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/QZ8LD1925441.