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 0xca50fd303a9433092a3d538fd6b0d5a25a201c216e7447de05cfd645242b5562. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dd2758f3-1667-4f54-aba3-51e8ab309706.json and https://artists.proofprofile.net/proofs/artist/dd2758f3-1667-4f54-aba3-51e8ab309706.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Fifa 99 (feat. Vyno Keys, Ndibo Ndibs & Mzweshper_sa)
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 0xff635233ddfddda97f4c08674da92fd0f0c21605d52a3af7643f35dacb621b61. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ZACZ82400078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ff6072308ae64011e520e57f16d1722d53aa660618a5585d6197ac90cec96fb. 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/ZACZ82400079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce9ad9145d77ed59d17608aacc4754318c85280240804911e871cb7ceb25e4e2. 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/ZACZ82400081.
Boots #23 (feat. RishBeats & Gator Groover)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbf67751eaacde1cd13a81ff80986bd47885d5c96c4e7a86ae738585ea81803a. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ZACZ82400083.
Fifa 98 (feat. Komtela521 & Kiidy Small)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15f5edb7d74acb2de16ebdf74109f12078d5de69f9e05f1c26b3571f15cb0b9a. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ZACZ82400084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa97d1c73b52cec784053709c75bc7c66105feeffb16fcd2de1934f45117ba8af. 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/USUYG1570906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x215c54c479710dc3ddc6dd8cd5a7d23f2b39b0fcd6ec4b4cd22e6510545724d3. 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/USUYG1570907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fde86ba46b75ea8f91fbfa655554911c5e5422e087eabcc4e6068695cefe2a2. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/ZACZ82400075.
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 0x2f36c7d154833a9ed42d1f0698c7911970c7d89fadce9fbf356823dedb0a8553. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/ZACZ82400076.
Special (feat. Komtela521 & Abuti Kidda)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x361cde1d64b6f8033683b01206801d159332e2805f6f8ece59d0373e5455df08. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/ZACZ82400077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56292614339eac49e8838270d7704af71a58c1cd02e37327c9e4f87d309240e5. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/ZACZ82400080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6577cf24f1d93b11908f6c76f574c0a188e0bcfbaedeb717373f337378067e57. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/ZACZ82400082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9d9d3d0bbe31a6542e14db95da5146e5b1b504b80f2dd15f7cc4c95fb86aec9. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/USUYG1570908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x809a76ec2752bad38a0090bae128763824424da1f61407342324669f1df7228b. 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/USUYG1598956.
Boots Movement (were it started) (feat. Rishbeats & Da Trill)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0344f3ddd5b88330a5521bf0f4dfdea63a89d8ef4ac79432f9a8e69fd675d0b. 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/USUYG1598963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5bbaf7eab9f286a8ab256c0a3738a992729cd3562c566da209936a29a93afeb. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/USUYG1598955.