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 0xb925c7f3aeb24a30d01a01484244b83da0187aaaaac01883c8ef9c689859f9cb. 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/5aab4f8a-5513-4f34-b91d-ebbbbb23e0c9.json and https://artists.proofprofile.net/proofs/artist/5aab4f8a-5513-4f34-b91d-ebbbbb23e0c9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ourane Pou Pernas (Take Me Home Country Road)
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 0x9b776c57fb7abc07c62d96ad8115f9df9d160f380afe85ca2f3e2556c7c81102. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/GRPO19700144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c8f499470a8d07d914931a506c634aa2e89edfef2201778fac0cfa3e390ba70. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/GRPO19700145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f90ffe1ab8a4b27b3e53566b3acd5cce9b8211b4366d389c94103d16f828d60. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T19:24:54Z), 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/GRCB12100291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b3f8008b2bbc12a314f58e72e15601a6dbeaade81fbb3504b67f9ddf288fffe. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/GRUN10000444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfded4fc6b8e8f0eff4ba1e62a82719989f9191242702e4271674ee4f9b18aa2a. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/GRUN10000438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c15cd97974fbc449635b69fe05b1c3931babf957056500e3016742615edcf43. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/GRUN10000441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfed5dff3198c0b5a9707028b535f6576d2598ef01379224da6e567c1514c4f6e. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T08:02:29Z), 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/GRUN10000442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d968e984d61398491bd603144d0781ec723ed3ad38e6b646206304293215bdf. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T11:03:17Z), 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/GRUN10000439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85f81b14ec2673648c22c3a09ac1263099008beaaa58bd547234e1902af52646. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/GRUM70600151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74cdea1fa8e11f1291e5cab2e5b07dfbf9174ed0cd396c4251a0dd3fc63e49f2. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/GRUM70600155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaec6bbe6a3c7be2e7744be8937146521585f0acdc47764f72e027c9b7702a138. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/GRUN10000425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb67a8fbc7caee8777336c4d3699c441d9c4c4f2a0beca39c0d3ff8507b7d00ea. 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/GRUM71100240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98ea499c65eb4bf1339b2016fd5921fec2aba40e6d5c184a4d33a09ebbfbdfbc. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/GRUM71100242.
An Mia Mera Se Chaso - Si Me Dejas No Vale
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe12d466131f555d779e0aa38a2a47762cd330dab5122decca30571a52b6eac92. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/GRUM71100243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb81a03a86367b18b0e3edb9ed24dd65e53446bee96726a1573cd1a6b12bac839. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/GRUN10000422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdedab0b6dbe06f51a895c8dfc148c2863d188b9125d68b6c30c095391ee252f3. 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/GR2DY1800019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d94e8d2bd2675bb31d0b84699b9dcddd9330b1042b0d28272c0d0100e7ce437. 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/GR2DY1800048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1fa0b7b03e8342219efe0009ef6ad301b8edf0b43081c8e2ad9f7b5c2a669eb. Chain 2 (Bitcoin): anchored in block 958850 (2026-07-20T11:09:14Z), 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/GRPA12500318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8186ec798a139752181b55dfa319e7ef028dabb5896e58eb1fdfb1996301d0d. 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/GRPA12500319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34038133622616d13fe613c725ffa0c68548fbc10754938814eb434b71dea0af. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QMDA62452057.