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 0xd1e7749a8a49129324104fa0daaaa1ee198204696cbd3b51102b4edccc907d0d. 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/5c9e1b05-3799-46e0-87b1-9063bfad76b8.json and https://artists.proofprofile.net/proofs/artist/5c9e1b05-3799-46e0-87b1-9063bfad76b8.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 0xe796af865d4a68f027909b533947b84e1f46498cc14a8667cb80f61d50cbc694. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/ES71G2044290.
Convoy (feat. Chusterfield, Garolo & Rastachai)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf78a07bfb082805c7bd9a1c6a89775d65b6812eded6e328b8c7bdec6855952dc. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/ES6102329603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb769e2b105c7431a0e0df2cf223d4c91e5a695ce253a44c62ca470b3ffc56809. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/ES6102320601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x360efd17478e0469cabd0bfec445f53be2623f8ad86406884653d7dba565c667. 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/ES71G2211936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12204d68b6528ff85822e4dfed1c671ccd47c2e5e01c96564df5e306b392ee86. 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/ES71G2237002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10fffc1505dc3f953c57eb91ddafe825708ba3673b4e94c894bf74e2ee1add96. 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/ES6102420608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeb1c6af0a26d0ded5cf1e0e5008cce038c1dd6edd8024672c06c618c52dc64a. 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/ES71G2219566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb769e2b105c7431a0e0df2cf223d4c91e5a695ce253a44c62ca470b3ffc56809. 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/ES6102320601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea82a7e03d125f368cbf7437835b634cd1bd87262b5cf498ed793ab97aa6acfa. 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/ES6102320602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x926422339f476aee4946620cdc05c36f691078822734d51a0914e5a5adaabb4f. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/ES6102420605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49bd9d3fa01a1f1cf7de5d9ae87a8c34b39ace851a5b721b48c172aad61cd31a. 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/ES6102420607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cdcd0bef469475cef5e41e7e97c3d557681f09f9686df1d66e77086bd974329. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T02:11:12Z), 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/ES6102527601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eb28b76fc3eeed9d7be1641cc5a2a05f2c3565ddde257a59d41c32af964d13f. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T04:29:18Z), 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/ES6102527602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15b36634c90bbda271a27fd30325858347af0ba52c0aea2ab1a87aca47b199f2. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-20T01:50:31Z), 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/ES6102527603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34fbc86c4f292818b8ea79b57d848ace2e602fe046accc313b6ad56433d18e40. 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/ES6102422507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9cf75d392e9d9b09deba78fe8b06e4d69f4016d5e120ce210119d13e2b45dfd. 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/ES6102422510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00a6000ff1e828ed1bc0f116bfce79884f85720f3a6066fe9e3e3d66e63c7e45. 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/ES6102422511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee2eb6664f0b1e84265fedc4b6e235c5005c244d291ffec0a42db93815118e5c. 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/ES6102422514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea82a7e03d125f368cbf7437835b634cd1bd87262b5cf498ed793ab97aa6acfa. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/ES6102320602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74bd9c25590139409f57c13661f7e764105f65af98faf7d2fb2d334f925c6551. 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/ES71G2310673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc60937f1afb0c5c9f06a24bc48719ab28898043c7c22ac4d29e3dca07c2e98d. 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/ES64E2202521.