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 0x7c1e78b891f624763a52b46042c5bd00cb04e49b7e47334c76dd495b851392e4. 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/c7c0d1c9-584e-44e7-af8a-f25235f3ad14.json and https://artists.proofprofile.net/proofs/artist/c7c0d1c9-584e-44e7-af8a-f25235f3ad14.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Pain & Pleasure (feat. VANYFOX & Fédération Internationale du Bruit)
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 0x86d8f88b6ed94f85c8dd212d0435d4be9e358b632bec35914757ab3d4abbbbc2. 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/CA5092300401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1214004448a90a05688f70daceea6b3a959b8dd1e363f771828e6407e83a1114. 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/NLUM72201596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a200700f3dfd62d056eab6af4c70f89b451df66e661da80faaf23ab1fc6f155. 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/CABD62209214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf3f3b68195454d71c158b5cf7e885c57916b042f736ee49b5b556c404dff563. 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/QZLBC2401765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x329a5972d88d2c672bcf4f7c3eeeb0a5496941e00b5b47ca21efd9f659788acc. 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/QZLBC2335119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20e1040528c40e5d511e1cb7ae2e75d99341d6d4379531cd586a25b0bfad364d. 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/QZLBC2318726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x235e3e6c42b4435f74b0b7439491a037420af5eab954354930df6f36489563f6. 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/CAW112100563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc41bfc302d9a5a4a5affb4b74ad2edbbadf9af29774c2029e4c2fe98d415d11e. 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/CAW112100443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8182f50625ec09f63e880f9aaa36e843c757f992f45283404d7eba369203f6b0. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/CAW112100633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1869d634c9e003e80bb33bcb6cafedcb772524104722bbb47cc195d234547d56. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/CAW112100634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8857128574f4d3755fb1af45d68a5ddcfb5edaebc6749309b1a659bbda20775. 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/CAW112100636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffa87d2196c9c81e5832f7160dc2d6a4b375a64f749a216dea1f5c1e1e0e9259. 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/CAW112200150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b9fc86bca62da6e6228f462b7227d9b63cc99b658e3c7045b2ee7409cd7eb00. 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/CAW112100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1caf1c7b656fb89c8d8155330ac6a41567782866a479967f494ab082f10a102. 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/CAUM82000301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf196e245a3dca9d9fc520afd784934c3ef0bb3fefe4720e594625d20a9940b7b. 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/NLF2C1900004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8365969d2333493f541c31c3afe6bd481f36ae290c9eff5998c2a3e8597e73fb. 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/CAUM71800285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d02fd34f997fe0cd1349484a9ed4aa886126564b7fffb58b0c6a3e7542d8971. 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/CAUM71900185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81c14d7893e12a5454a9e88148b34b1923e3c91c7a748f0b8fb726bf46e18ea5. 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/CAUM71900182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65b55b58c2b53e3aaa80b8208cded20146c9a7c6c40be577dadbf1a12bc085c9. 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/CAUM71800288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7780412fd40aea0ee6b2806fc2665a2be6fca5e2307ae4604763cc2a2ef0595. 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/TCADE1702361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65b55b58c2b53e3aaa80b8208cded20146c9a7c6c40be577dadbf1a12bc085c9. 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/CAUM71800288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8365969d2333493f541c31c3afe6bd481f36ae290c9eff5998c2a3e8597e73fb. 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/CAUM71800285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08a7bcb11b9d671adf22b4e7e61384fc49dcbc3dc8b659a709c69e7e6e32783d. 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/CA9EP1800004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7780412fd40aea0ee6b2806fc2665a2be6fca5e2307ae4604763cc2a2ef0595. 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/TCADE1702361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc4f13d5877782bafa82ce06515e444777a7e8446bd126349e80dda9407882c4. 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/TCACS1614799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44b55743888886e04eb4145d0df177dc2eb513d39e5f7e3924e4863969e10f79. 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/DEAR41322237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x304ca4c38052fc5ad546d9917f0e63d03f16ba329ab8315c645689ec3dc21021. 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/DEAR41322220.
Noir Fever Présente Moonshine & La Fédération Internationale du Bruit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86d8f88b6ed94f85c8dd212d0435d4be9e358b632bec35914757ab3d4abbbbc2. 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/CA5092300401.