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 0xbcc729dc4e30cf4532bbb2c1907add22248eb861c430723ba31910fe7f5cb250. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1fab30ec-b718-48c4-a397-7a3b464ba58f.json and https://artists.proofprofile.net/proofs/artist/1fab30ec-b718-48c4-a397-7a3b464ba58f.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 0x9746a50c95a22d66d5ffeb9f3bb6e9bbb0fd69f91c3ec90017aedab18920b88c. 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/QZNJY2180375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc42cb6a8236ca9a7d55c888c76aac71b46de8d528979d95d9259bb1353add178. 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/QZTPX2168605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa564c69d11e0ff75edb4a0c9105191b7e55744cfdb460b26e9dc8daa4c4d927a. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/US7VG2241497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0762f4cf60e62e581e0ce1ad3fde6650c6ee3da741476ebdb47a5a3b54b54ed6. Chain 2 (Bitcoin): anchored in block 956748 (2026-07-05T05:55:59Z), 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/COAF42290593.
SOLO TÚ (Remix) [feat. LuisOn & Bobby Sierra]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x302a1a327714f81a13533bc4f9ecbfbbad91897559c4301fd8eb91d8eba15b1f. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/USLD91740455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9362cf8f7b29ba7cc5dcb59bd342def14e747f59c4b68a73d33646c435ce1310. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/USLD91741172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43e310511885c492936ce39295e583667632e11031a691fca003655e0da0ad61. 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/USLD91744295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a19ce286f1afa031e9b6726e8546ebae8cfd0180edd23cf5d4503aab798419e. 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/USLD91744546.
QLQ (feat. AnReis, Dav Music & Dann) [Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd266a08f3bf0aef3454674e460c27604643d14e46a876ea6d93554fb9c0e54a6. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/USLD91750135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3911a48273d0839ef798cac8de6577f4cd41d4183b796a51017f5317e3d3faab. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/USLD91750855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b6832b73533a30480c6144f907be70b9350cb74d935a66033d03aede6434f1f. 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/USLD91750504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd533a94fb0ba09bf2345e061be3ce9f30df858366fd335c5869dc8cde67f18f5. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/USLD91752148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5f8b1eed65eff9813df9443bee7097f38bcee323694772d3b90f06f509d08bf. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T09:47:20Z), 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/USLD91752149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aac987fe982db36593e6c387e7aa3b0dcb9cb3ed4ce269f17d56b12bbb734cd. 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/USLD91752151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4625f333fd219bd899e8d6c731eafe2d6b56d19eef0f878a344d0dfa0d65aecd. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/USLD91752152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85b794176af375d1523318b5ea2c362b133986a78899067e2a05d23f0bb4b775. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USLD91758697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dfb4f783b5bae8ab24286104fe79b86251ac7d57b953325e6fc88353682604b. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:56:32Z), 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/USLD91768391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ceb585849423044fc9b0874bd9373f8019115261df0d096b973787378c73a52. 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/USLD91772469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37a95ba218018ce40e343fd768301b6dfb2f61d82fb9a3c1a485519ec7e1def8. 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/FRX452491674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37a95ba218018ce40e343fd768301b6dfb2f61d82fb9a3c1a485519ec7e1def8. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/FRX452491674.
Las Manias - Black to Tropical (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37a95ba218018ce40e343fd768301b6dfb2f61d82fb9a3c1a485519ec7e1def8. 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/FRX452491674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd03a87ded009eda3407c4925799fb4260d0a832c629b8cde0e01aef87262c5bc. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/UYM122400115.