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 0xdba9a11e8f78e48d4fb9ea818736f9f6368e4817ffc4224fdfa209a10d626c3b. 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/12dbd150-11a6-4dc7-af56-5afc0fff9e95.json and https://artists.proofprofile.net/proofs/artist/12dbd150-11a6-4dc7-af56-5afc0fff9e95.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 0xd60ee0d08d74ece82c8280b7971210b80a4c6d422c47ce926c821c61a55031ad. 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/QZFZ71917389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a702060a0f248cb0440ebba0c8a570a4a2c55579cf0794283121a96a65dee95. 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/QZDA72048999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x158a5252a6df96893fb19f9e861be512c737836a1bfe13ef8c0c1592e3a6f8e0. 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/QZDA72049000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f7429ba16077f0b90d4ae3943ea84d13909e464b6fea64f018dac1d732f6618. 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/QZDA72049001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe34a3534f137ad5f656e82752bae74a2ab4af1a678ff43afda746831815cb658. 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/QZDA72049003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x088b6ee5a4f21e166bdc45fab4c88a044123074be63ebffcfd0d8bd6d4ed897c. 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/QZDA72049004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x060e7996b3c7787db175ce5e1d16d7f54a4da9a2f583e18612f4c88aeb385514. 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/QZDA72049005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9d07ac12ec88bbbae88800e2137ba26c8b78555e91c088dbe89b161b90a3789. 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/QZDA72049006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea3464ab53dc28355f2e70ee4f2be036f15218fa245d10357ab77be3224b518a. 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/QZDA72049007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x342762c73f6bfd40e1f8676ab55f2fba4429b418d5bb13de14f463ab8fb452db. 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/QZDA72049008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeca34e00b0fdfab586c13eaff132d4040b42baaa0587858b8525e0dfddb55a17. 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/QZDA72049009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e752bea27669a8ae25001b2e24e92d6698ce839d42dbc2348b285c2461a0db8. 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/QZDA72049010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x360c39cbae12faa1fbff3d138bc647a960beb88a356723beb54ee9bfbb7f6438. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZDA72049011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x592bc2c31fa4b0e7503a027f11b1606edeb04098005ddd1fdca70f5e8bd64bd9. 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/QZDA72049012.
Bounce Out (feat. Conradfrmdaaves & TruCarr)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc07da0fa55a9f59f4ac7b77d4b53d29d71343bc41fcb413a7b0d3c24843c9066. 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/QZNWZ2307854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d54b79ab52e5c6a6fce955baaabeb1d28b3de8afc49a72f1a709df264cc179c. 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/QZFZ62411762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdaf1a67ab552a84e7b794e0a6133e8d448061fa79ae4a3db80ef258156382cb. 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/QZPEW2427078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb76b380d348254e820874d317331e6f536d97fe216934d18945603e562f84f71. 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/QZNWS2450145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcd9e36901b4539da9013b9f79503337be985e375df2f7d83004b2f3b4094835. 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/QZPLS2416094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75848d9b4670847506c1a8c2d89712254318ff94df907c5021aeacd8b043eafd. 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/QZWFK2373621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8296b5612558e0a60843927eebe4d794c8a16a038fa40caf34541de9e6c8c2f. 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/USAT22102790.
Ain't Worried (feat. Bravo the Bag Chaser)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fde17ea911bf478700919029a6a01dba2fc0d30168c6ff666a66ead9a011ca7. 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/USUYG1366761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f75f9c69905f98878144c60d17a30c3e4801f0ee93abcccbb12f47925e3d461. 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/QZVEM2345416.