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 0x3dd6bd3ae8546aae1657df17874c672bdb26c6200f7d97b22eddae168550d262. 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/c6a0b962-c69d-439a-a766-1ca10c0844c4.json and https://artists.proofprofile.net/proofs/artist/c6a0b962-c69d-439a-a766-1ca10c0844c4.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 0xeca848ffa11559c2d42ea1bee4534093f232020f2ba6089cef29a2c2121b2eca. Chain 2 (Bitcoin): anchored in block 959015 (2026-07-21T16:38:45Z), 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/ARN601200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf0821fb15234ee32f8ab07565152d920fee3afed964a2ce0fbeaaf35d51a275. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/ARN601500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f0ea7581930cf517b147df473d4e963b3477913602e5d3f8260c7d5649dd288. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:46:16Z), 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/ARN601500003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64df0cc38852062f9bafa8d0ac98d9a5b0174cef9dd1bfe4d4bb885de4b2cb4c. 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/QM4TX1956966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fb1decf7bee417f28cd404a23fa20737de30bfa15666e744e4cdf960cab74f1. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/QM4TX1956959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf35793be316e9669fa9eb1d4a14f618416f1fa0db60bc5c6d4eb06b48b3d8b78. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:33:55Z), 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/USA2P2015764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x994bcc2e569c4e8f8a0fb0537ba4c8e9a16d7a115224ff2025b5524b024c5e6e. Chain 2 (Bitcoin): anchored in block 959089 (2026-07-22T04:49:20Z), 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/ARN602000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x061ef04c7f2dc1fd61ffe31f1e1c09487b6f11a678f94cdb43c47d2740c23c6d. 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/ARN602300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bbbe2967ec43db22a74ac2103ed02bd1af68b6048ee5c52014981e5f90713a2. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:55:49Z), 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/ARN602300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2addd902e80f6cada59c4a1f73fc0ee3934b1286cd6bf02a270c8f02f667794. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T03:48:36Z), 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/ARN602300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd3ff7bcc64ad7650d4aaab1ac0bb30a1ff6bcf4c13f4b810fc8e1684262e488. 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/USCGJ2227892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e37604262445b5d1061344f77ee1dd9b968a61eabf9b9cc952e197c01db5c84. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T23:01:59Z), 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/ARN602100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0ebb2c021d8e550470094c6730ab8ba2f1617d4a0f11fdb48d8d04fd735a67c. 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/ARN602100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2f60a16c52a691746e835d8f0f213646f6738bb20334721c16b62d7484c6335. 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/ARN602200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bbbe2967ec43db22a74ac2103ed02bd1af68b6048ee5c52014981e5f90713a2. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T10:43:54Z), 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/ARN602300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea365edfe974de9e763b6c152200416a3d0e7a428335be404ed05df84deee981. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/ARN602300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5402c63494b1516ed7a03a2a14262a3ef03c6ddb45a782cd683ebc65a1fddda. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:55:34Z), 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/ARN602200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0ebb2c021d8e550470094c6730ab8ba2f1617d4a0f11fdb48d8d04fd735a67c. 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/ARN602100002.
Haciendo el Mundo Pequeño y Fantástico (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fed074f02187fbfb31595e52d064b3b4b78bbc17580ba82481c4d5406cf01d9. 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/ARN602400015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb77eecef47562c3aea226cd270edd51073aaa5f97d09226dc0e76222f881fb8e. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:02:31Z), 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/ARN602500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25f7a87e720a6744b303c0cfac89ff076bbdab002b073e63b33df3fa36e821a6. 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/ARN602500006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa842f6c0723e49b9aecd56fe72a2b08e05e4580a00768dfe4ae9b6a612f3a2e2. 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/ARN602500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ec8bd20cd1473653d9cd4552325bd89d651da25b6edb7f27a118ecb7f030652. 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/ARN602500009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8c69665606d7f629d75757800d84e400a2935b1fd3da4fd0d5e121a21098dea. 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/ARN602500014.