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 0xbdb4b3145fc151986236fbd01bd529ccce47dd6f6920cb0aceba71fa6a1b6d54. 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/64f4dc30-9630-41ea-aae9-c0664c0154a8.json and https://artists.proofprofile.net/proofs/artist/64f4dc30-9630-41ea-aae9-c0664c0154a8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Toujours des mensonges (feat. Vendredi sur Mer)
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 0x0300aa9ee6e3855a97e71e6255227cd206884a2597d0490db39480e50764fa7d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/FR8Y72200622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81e0ddee4b95f4ea24f6e1c7a802f4c4e4fdc285bb4e0ad2b790e358c95eaa93. 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/FR8Y72100421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67ebca5feb646b98384c3207e5331b981f2f7824ef104b650258024df5bfb11c. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/FR8Y72100140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf70c67882c128f9c08229a62f25fbfa2dced161aecc98601f809a18a343978f1. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/FR8Y72100099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c42f4ec812dfedc3ca430eadaf4793c05fdca319ab8f8ea06a2ee4c3bc1156d. 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/FR8Y72200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e684f50ab00499383fbc29850446bb24d75fedc83d7d901f709942afcd8001d. 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/FR8Y72100427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1012586958587677ede2d437c9af34e7c02a5165c8dfd60833feb25d69d75ec. 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/FR8Y72200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6398a0fbb09561fac5ecc70b4b00072cca4490fa7ca348f886ce3e357f183c01. 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/FRZ051700608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96d5af54aaf0de51f68ac4ad74296dfeb08f558f3eee43a91dd0eb5b0433ccb4. 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/FRZ051700613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31f625c59e753e3fa2d34fb170019e6716ac6b3521fdd35c8c48592670b6144c. 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/FRZ051700615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8222a32563e2526c44605f7fffe507c63013525328999e4a0db2d7d33e0918f0. 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/FRZ081300353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80b8ae218d59ddc8935e07ace5baac18c74ca9a16d725caa33d6e531d8604f7a. 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/FRZ081300361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0d39e1453de2a5d0590fa5f99d274846614d0f902c33537b447ec12a4f03f96. 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/FRZ081200459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5e03a0d501dee8013ecb28e50b98d964b5f4d6fc7cffea3994be7723c198f07. 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/FRZ081300362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x657d632e9f6d2f9b779189aff44b4a608b0ebc515f1ed63ea79b73b463b15941. 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/FRZ081300356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81e0ddee4b95f4ea24f6e1c7a802f4c4e4fdc285bb4e0ad2b790e358c95eaa93. 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/FR8Y72100421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67ebca5feb646b98384c3207e5331b981f2f7824ef104b650258024df5bfb11c. 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/FR8Y72100140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe530d6dd47078700f08111a592204d4f98eb636434e8827e404776a6a48880c9. 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/FR5Y71900005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6398a0fbb09561fac5ecc70b4b00072cca4490fa7ca348f886ce3e357f183c01. 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/FRZ051700608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x760e0f69d5ed1ac07f4d99577d82017aceed8e9fbb879361b1a0452b5670a5dc. 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/FRZ081400095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78b0d08113c9604e6959c9e7485690ad7cbd759a80f8b5275a3132eab7610303. 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/FRZ081300380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x844c417a2627f56550a89e140bd3da99fae1a65ff93f4dd849dca74b90b50083. 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/FRZ081300015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b863cec5b36de941d7c7bde138503ef94dcb33cce39e826b1a9b5078684b62b. 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/FRZ081200550.