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 0xe443d5d91df4cdfccb3dd76ac38ee5f17b7ac5ca631f8cc0e35a017637578ad3. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6e2892f0-88a4-493a-8c56-2feca0f9239b.json and https://artists.proofprofile.net/proofs/artist/6e2892f0-88a4-493a-8c56-2feca0f9239b.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 0xb8e2bc52bd020122da1fa3861435522a17ccbc28c3e2e717cd17060b23a77ba6. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZNJX2178525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc55ce47a331d96c7115aec32f8c2c28825cb4746a7140bb94fb04d55d7d3800a. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZTVM2338263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97370235ba138e3ed6d0e407bdfa66b7c4686795afbf17f0d61d263375b2d961. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZTVM2338264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc56442f8ad9396dc492438f72a43c474477d62f311d501c96c52db8178d753b8. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZTVM2338265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d22e9ee7ea7d365888564fdbbbdbf4ef0389d3dca95f146efcbb7ba70a1bfa6. Chain 2 (Bitcoin): anchored in block 958558 (2026-07-18T13:44:16Z), 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/SE62M2341876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8500898a4ed35fc8ce97fa94315a26dded165b469e217730b9fe11b77060a2a2. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/GXBAV2449286.
Antes de Morir, Espero Poder Encontrarme
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00a9aeb9b25b33902cc454ae78d89af1dc06598c27a1f2a1195b84d553be5dc3. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:25:42Z), 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/SGB502457415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfe9c93269cd63d4edb6e7cff8a3226e192cb3492179e13d69feb6d1a91ede40. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T20:03:04Z), 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/SE6HN2411519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a4523a1a072a25bf674d0735f11e5162fd17c855cca94b6e9c8ece09d312969. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T02:09:31Z), 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/SE6I32411972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cb2b6344657a09e9c7934558cec548d83bdc90221de46d9de8e1062f16c8c75. Chain 2 (Bitcoin): anchored in block 957705 (2026-07-12T12:50:42Z), 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/SE6I32411973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc92a2038608526524a8b525b33a9a319b53421edd043a9d56f997508eafa9ed. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:16:23Z), 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/SE6I32411974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4a196d03dc0c665d8804478f5e23800348447f70b5d0ba1807e640fd1b6ccc7. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/SE6I32411975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90018e634ad16d55b99eafea79e90ba188aaadcb3d316c419e8ce678a066ca50. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/SE6I32439111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f00b28fd6105de0b34ff99d9affd7ebd073192126a5c3a6708fd0a6fec512e3. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/SE6SA2431117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdedcbb2f846422967fde1fd3ded2310e459ac3a5892f4fffd1b3481b49f8beb0. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T14:08:18Z), 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/SE6XY2587354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa450ee8a9903c4e6b548b77a6d0cfe209887444f79669331bec41e949a28e811. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/GXD7V2565057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8794525bd29a0340a3166206b68cfdc4dbc97863c8ddb0f91e9a4821815de608. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/SE6I32535266.