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 0xe129e3f091732f9fb03089b6c2329f7aa340968c154cfda19a58fc7ae7b94a47. 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/b323b408-0bb5-4d2e-9b34-75ebb42fa7dc.json and https://artists.proofprofile.net/proofs/artist/b323b408-0bb5-4d2e-9b34-75ebb42fa7dc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0xb1c55326130ef61549a98e6226356ce00ee04299773644f8d27db6196b4e6978. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/QZHN72090236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b7f762b04b9e763764636e793de6fc4ed81ab7862a628c20f250e64f56feac2. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZK6Q2079284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x575e471fef55d6bb2ebaded441af150688aa025c0201e352784e6698e909a6e0. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/QZK6N2093600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6be3070f512e8cdc648c693a0bd2a7ee2311189090aeb0a4ee714a91bd385b1. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/QZK6L2074370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0a123f41532537c30f1022333fa6c62ce87f3271afbff74119c925421f08ec4. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/QZNWQ2077627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe00d953fc73e5f606fd51465dc8d0bc1762c876cc12899de8e3bbe91f6871dae. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/QZNWT2052185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1769e645105fa1dd74cef5475e355acd3e778e6299889c5d202c30b766bd048. 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/QZGWX2172905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42fe64664183cec2503b636d74002031e33283084060222b7c2f0e1ce03c5acd. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/GX3Q92003103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e9acba036ca0b83545c60b61600ad7de06cab239c86da3643603583e6660c36. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZK6K2043582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1eaece1dfa83d801e11b3645d1e3b781056006b7596bcd6fc23c89eb76b67f5. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/BXNKB2100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b7bdfbf8d168e112f2847099cfe6220b1889bad60977f759d239b7fba68bebe. Chain 2 (Bitcoin): anchored in block 958104 (2026-07-15T05:34:05Z), 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/BXNKB2100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x101e61c405f0a63af35c72fcdcf2aede8c3ac62a84c3622b0e92955281b84ecb. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/BXNKB2200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9a08af0de72a2732e51f3dc0b608048e69c031eef100c479e7f7990feebb384. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/US3DF2241796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00502d6bc29eaec743ed4ef10e21c4641fadc90c2a5e75304a71bc745e83deba. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/BXPC12200040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea0dd17c995af8421790067726cd6be1aa7dae1eab5bd992516755687def33d8. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/BXNKB2200018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83547486e1c71620423453afd3dacc45cceaf138b08530d99dc0a61ce85eb58b. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/GBLFP2474898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9c26bcad562713669c4b8c136ce7ca35e88edf048ecef8bcec0275169eeb97c. 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/BXNKB2500007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x346021ded732322d6897a9389dcaec04d9754a9dd307da3e5b30c27411764d11. 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/BX1292210015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe87d3ea14b8a7a87980154c9ee8665610df828318aa6cd7d8f20e82dda6c98d1. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USANG2423595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c1af7f8b404aaba18e34de3702de205ab0acb941183938707704dedfdc00925. 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/US3DF2439778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36e0d390d1d9728e92430d56f29716a61420b047e52e185e67ba72af3a37bf08. 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/US3DF2439805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18d8b5bc5a335d46914abef54492c29e06fb259d227abf26f232831e08e50a10. 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/QZPJ32204370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea0dd17c995af8421790067726cd6be1aa7dae1eab5bd992516755687def33d8. 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/BXNKB2200018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1eaece1dfa83d801e11b3645d1e3b781056006b7596bcd6fc23c89eb76b67f5. 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/BXNKB2100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8fad547f0e5b0dfc65454300e6f30b89d7ce2a83ba39e266f0f7ba61268f6ac. 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/QM3DF2215219.
Chill Brazilian Storm: Everything Is a Dream
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2004378a2970bdb8bb7260b67fef1cbcf72ede47b2d48a0250c937e5f33e2fa2. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T20:59:15Z), 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/BXNKB2200008.
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 0xb57f8c726fe6a81e1ba86db9b8fc14793c80ebe6c164346f32421ac64b251968. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/BXNKB2200014.
Vandalize (From "Sonic Frontiers") - Cover
Vandalize (From "Sonic Frontiers") [Cover]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x577b031ea3ffd1c2d8b2b33f1224e689d226bb6a68a93f818655089577e63c65. 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/QZPJ32244503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x277afb139c84594fb5bb81d447281b3b8f439de0ecfea07ca5f0be0c2f4f2774. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/QZPJ32204369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd36389becd18bd2174d2468df2b03acfd98684ba64f31e68003210ba5376cb9. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/QZPJ32204378.