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 0xaaf966adc2e5897b1bae7d1e45eba19e83743a292eeaf98d7c727ea847cd7368. 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/2c73d892-a9bd-4d59-9bce-acd80f464045.json and https://artists.proofprofile.net/proofs/artist/2c73d892-a9bd-4d59-9bce-acd80f464045.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
L'amour et ses complexes - L'amour c't'une perte de temps 2
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 0xc69bb2a542f5da147f55a3febd5e329584a0c2b646279f5ffa3b8abea79b537f. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/CAT561055552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8136ed7bf507f1d4e3e80cfa426a03a0777fd573d79665044dda0677ae6de84. 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/CAT561055551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2446dc7c98c9bafc0fd62de0028770a8389e70a4816e51c097bb7d813b48b8f. 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/CAT561075560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3285cfea94a1484b0a2dc1870cc2bd21eacdedec0217aee70b87851c85ac168e. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/CAT561075557.
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 0x450482cae5453b7f87162bd1e77a1cefef622aae2086ed12f34b4890792db765. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/CAT561075563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb34851a11decef4cd957e99a351f23b80029c47ae6784a99d8c3c0459281a527. 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/CA3YN1700003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1627bb71edffe4fab9f45181517fd99c9a530e031208ebbab66881aa899e331f. 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/CA3YN1700005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dc245bcf140f62dce684c8d986c6ff7fbff1571aa82527c2f5c9f929283725d. 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/CA3YN1700011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d9136d400380300b84e60775670eab71c1ddf6a2dba16cfec25fa92aa506549. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/CA3YN1700002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1ef2ca281b0ddf084ca4da4f3ab10574b5a92627a86fac9ac3a617f19f41d84. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/CA3YN1700015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4260cfb8dffe445838eb3ce96ee746f9f55ac20ac7c2b156d9a59cb2e6169ec8. 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/CAB582300101.
L'amour et ses complexes (L'amour c't'une perte de temps 2)
L'amour stune perte de temps (Version 2005)
L'amour stune perte de temps - Version 2005
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa2af315b3aa8e803a9c8f4289f1445c0e03cfd5aea1e53c97024dd88884d286. 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/CA3YN0500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x820ca36d332498334bc2f74ae821cc692e3f7b46ec7fbabbc1ff980d693f94e4. 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/CA3YN2500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x617725dbda87d939ab0c5943fe33c18b3618e3e756a96303464f0e21065d387c. 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/NLM970500126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x495dc20a9bf3b76df46eab77d7e41b0869b819386624d39f0adba8c01fa524e2. 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/NLM970500128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca9333729eea587015a4cf2952c873e9da51718dc43b86737e785d69a91844b9. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/NLM970500129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x443fd030cfc77042598495bb125a749dfec00d3ff39008dedf0b5cfcbfea0044. 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/NLM970500131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x198df4a256fe429cccc0155b0ce22cf8c0b1352ee87ce03e1784a11403ea6332. 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/NLM970500134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd1c122764f2722ca98eaa745ecf759115f7c85b75eecb4ac53452e8d4fcb0a8. 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/NLM970500135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86150fe25c924541ac2445d779c06fedff4e5b6ddcccb7b8d803c96a6a45b288. 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/NLM970500136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dc14704025e8da19723ac67c07bd68aad9be7fa3d108409b2871f7f212703c0. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/NLM970500137.