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 0x1507da3425fba090998b3d23658ae1e72a17ffebcfd4542b6d66096f8f81c89d. 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/cf5c80bb-fa25-4fdd-87a2-2dcaa76641fe.json and https://artists.proofprofile.net/proofs/artist/cf5c80bb-fa25-4fdd-87a2-2dcaa76641fe.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Dofus livre 1 : Julith (Bande originale du film)
DOFUS LIVRE 1: Julith (Bande originale du film)
Wakfu the Series: Season 4 (The Original Soundtrack)
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 0x082f2f0d2afba1a5e6693085f7b869b6cc92bf51e95e98c0951b53a9204bfcd0. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T10:10:14Z), 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/TCAIC2462986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f4323d387d76300de4c8abc45dac3598cf5908236313dc329847a83f72c9745. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/TCAIC2463019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5e533853403bffc34111c0b06975deaa00415609f260b798bb754be4abcd4ba. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/TCAIC2463098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1b79d169d9c4de1c1bb5c08150eb51808d961037bc604c9096d92506c3e2265. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/TCAIC2463113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2c211b7d6240f8776c1de982ee861d9e9de708cbebbc685e8acd88e9403925f. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/TCAIC2463245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95e2838f6ce9addf73338534496f011e89a4bdab57f28eedffade63ccb30f2a8. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/TCAIC2463250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02c8226d663b7f2c04fd8030f39a567b748251e15e1bea5516c2c7b27b3df9e0. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:36:59Z), 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/TCAIC2463265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc04b0d31ea4640fc1f8efa0e35d744f08ed8f09ae26d3c1c112469e7946048af. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:43:52Z), 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/TCAIC2463279.
Oropo: Battle for the Eliacube (Music from the Original TV Series)
Mutafukaz (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a6a451a76e17eca0141d8331e1c8ab1208685ff537f7dd0d151941655bbbad9. 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/FR3X61800027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffc7be456bfb941b6352b1b96c3f5593567da560d4c25f97ac3bc8fe2629d937. 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/FR3X61800031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a11d3e6b42d3f70af8cf1f7c43b371dcdfa8ec51da31261321f077365f20971. 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/FR3X61800032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67706c03e6b4c8fc05473426641cf8713ae4e198708be34be148da59424c2c3d. 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/FR3X61800033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ab3f886a6918cc7b1993640444f0dd925379a9c5947d2fe46fd6f1e836b5751. 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/FR3X61800039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedc51b74fe7188ebd7c50386bb51552860f5e2b99bf4e5138c91c7a65400ea9d. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/FR3X61800025.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb60c67d54d75659ed44fb9dc781186dba45214951e19b1be90e27a69502a224f. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/FR3X61800026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8442ea24ddca837730e122d4204b1900c95bf104ff302f170ff3307b8a090d8b. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/FR3X61800034.