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 0xaae052a7def5a5636e0ca7fcf8c1dcb9dc39dc66ad1ec9c7067ed0ebe9d80b07. 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/f03a9cff-22e4-4ef3-83d5-e3c77b9286b1.json and https://artists.proofprofile.net/proofs/artist/f03a9cff-22e4-4ef3-83d5-e3c77b9286b1.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 0x876ee7c302a9456dc4b40f76e422e67118f20c1b25463ea81fbae391f4f132b9. 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/ES64E2303917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x057cba50c05e198e895dd6bcdd2705e9956109f1dc17f24620a53d1698362c2e. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/ES75E2301210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7b27371a2466b73557f0e2e59637109d564ac12d5bd8332d58a4f45293cb24a. 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/UKXN22316872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99eebe05737f5a2cbcdc740410161edb212c5b74379932c870ede7b27b44912e. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZFZ62407108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bff0291d1954a0cb7a33fdbac64f7373afefcef0b1f8a9fe3cc1b500d215086. 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/ES64E2205485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x026c66a048eacbd384d47dd1ac363e4cf3ae35352cfc98bbd935a13c13c06441. 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/FRX282208380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x945d42a208966e76e13dbf0789897aa7f51580ae783190e0137cf5fbb542b500. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/ES71G2141514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x142b20c3ef01bf784140d200e3aaa31df7bf769aa2cd92b635cee6f2f40d7090. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QZHZ62047142.
Fe & Fe (Fuck Everything & Fuck Everybody)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1201c6f6d65a928a47592d40e5b77e7f0bf5a42132cd830ffa52ab12cbe6b364. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QMBZ91912584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x902b9719e4a3cae9a9a35479db6f3da239cde9217e4a1e4dcad1fd006509de83. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZ4JJ1863086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeca158bf4c23d5b9e764f21eb68bc45c762849613c4d8e7de11aec0b625109e3. 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/QM24S1800790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53a817846d91847e72b15a9f3eb3fdb195133524f8dc4633b9e077d7e983a1f3. 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/QM24S1807136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd86b928a1ebdbe391f7aef2b53271fca6811f716e67572f055ebed5276095874. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/ES5152100576.
Ring Ring (feat. Mentaguay, J Holland & Aren Martin)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc30bbce751fa7a61960a69d8f45d1a11e6f0965d5d2572c399602ddb0260fca1. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/ES5152100577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bce9abef77f1b1ca05c0dfeaf89545e1e274f9704e7ccc7c5644bdbb442213c. Chain 2 (Bitcoin): anchored in block 959145 (2026-07-22T18:00:27Z), 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/ES5152100578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe660d675ec6ff676b7af9ce769885dc6bb961db71846912b59712a1fa009990c. 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/ES5152100579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aa0d68f59b732187d50dbb166fa8903c750cc74d1f5b86dace3e8aa548cb285. 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/ES5152100580.