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 0xea370c734ec21986c3749aabaa5076e6a2a511763ebbf59a0f62937df39dc4de. 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/c35666de-4070-489e-8d56-feb917142e73.json and https://artists.proofprofile.net/proofs/artist/c35666de-4070-489e-8d56-feb917142e73.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Le père Noël et le loup Pt. 1/2 - Histoire
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 0xddef20b4f15fc54346e283210ae1647eb4e94e231b981f1e89f1843f7e2a963b. 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/FXR482200708.
Le père Noël et le loup Pt. 2/2 - Histoire
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa331433fc522f6adeaddbe0f05f7420f68cdbe77fd7f92515ff81406ff2a3bec. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T20:34:21Z), 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/FXR482200709.
La pizza du petit méchant loup - Histoire
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59fac3ebee9c840d454a62584179c43c05880fbe3c078661f9d361d189c50b5b. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/FXR482400163.
Merci pour les crêpes, Jasmin ! - Histoire
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x459f826a20923f988bb41e24b287129a91cf641053af96c75255904b9a8fc985. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/FXR482400164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4964a254791b9149766c2cbfe625fec55869577f513adf7fab87f557c84ec84b. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/FXR482400220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x467bca8ab67e1d56476f9fe709b29d1c803e14d9f446c5c3b995026c04f06e14. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/FXR482400397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55307cf0f0538f28e3cd97cf1540ebc3362ef50ecdf7bfae14801719f2ab1679. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T11:04:11Z), 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/FXR482400399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7925da10690aadfa20f7d22552620757d0affb56fb6670995172926ce01a5e2. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T16:06:47Z), 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/FXR482400401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7388e891d84bf34b4354b0e8e682e94968be20e643c08bf12d9cce6592e67ef. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/FXR482400629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cf4cae8f348ab20972965bbba7b5a8a20d09747f3aa74d76b4ac09c7e844f45. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T03:48:36Z), 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/FXR482400630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b496e8927303c5474a77b638c57b9c122a59bb60d0aa579b2376b683b6ea7d4. Chain 2 (Bitcoin): anchored in block 958722 (2026-07-19T11:03:50Z), 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/FXR482400632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x793eb1f55631ec4913df83b754f598b4d6a09070fc69239e9b969f77142e29f4. Chain 2 (Bitcoin): anchored in block 959034 (2026-07-21T16:34:25Z), 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/FXR482500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc58c721956a64c62ddcc66c3c3f8ddee7670eabef13bc2d54896983ed42dc0f8. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/FXR482500002.
Grand-mère ourse et petit chaperon blanc
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12bf3df05efe1764f0e3684099eadb4cbba83d13b61d701dcc8508a4455d2bd6. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/FXR482500003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0443ae121868a86ddee5fa7f8807b781fefbb76e21cf373f02f2229991a2c782. 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/FXR482500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ab62f5bda2c47744eaa0cd95e6cffd46884e6746694e492ff713187ebdcb91d. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/FXR482500065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x292194048a03b850d1c1442ef2c2240967d9e1a8c97525d3c14560ca8e33d261. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/FXR482500069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf83e319db434c13b851946c214fb26ec48ddb75b63ecd65f107a678213dd370. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/FXR482500071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84898a18aada737cfb386856533b9e881ed7fdb942a0804e685ca9afde050689. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/FXR482500072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d5b10c67908a9b53402117d95516c6f4c1a1a4d264a5819120aefef20782bda. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/FXR482500073.