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 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 0xd7c0147180d1b17b0cf336816b9710f84d0ab524382364e7b212acb5602d27df. Chain 2 (Bitcoin): anchored in block 953713 (2026-06-15T00:33:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/80a377ba-2fbf-4e3c-82bf-684c0ce7941f.json and https://artists.proofprofile.net/proofs/artist/80a377ba-2fbf-4e3c-82bf-684c0ce7941f.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 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 0x58e87ad758fe397b4f8149d5661d3bec6787b951016ea8da5870b663c5c27b96. 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/QM6N22082717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c992f555602204cba48f462637e5e276abf892699c0f433c66607600821fdf5. 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/QM6N22082718.
Rainbow Child (feat. Cristian Tao) - Tempura's Dub
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeacd3b2250d875ee7c37bf235a1513d428a84425e8c8be26320ce2024e63b87. 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/QM6N22082719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c3fdd68e446064e3eda2b15cc7cb3ac228edb09c8cbca92bdc421ca905fe814. 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/QM6N22082720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe06f58c4c5b195131ee3b38343959531916743a3cc1f41e2738d71f5a7097ea9. 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/QM6N22082721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6247b3f3fa2e006aaeab44e4eecbb2fea47d13188db5ab2dae903476d99b8320. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/NL1JL2100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45be47cd0e07dcecfa5ed23ca88c65e56e9a7325b119de4e2a882db65645120f. 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/NL1JL2100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5420d6736a52db84de178a9bd3159e97473c30c851489cc194c84815579e211c. 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/NL1JL2100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb236b86b354feaa5a81908fc59ad3f295791a54f10630e2e00104dc42a4eb24d. 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/NL1JL2100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8f5b5b9a195b21f938af16a7a17d366c47da6109c1b68575e56f4dc711db63d. 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/NL1JL2100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6eb8932bc136f4cdfcce34801956d03dc8d2af3d32df1cf0e6934d5b149c80c3. 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/NL1JL2100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c2f73ff332a797c19ae14c30d41b96a5f251cab1f1d4dd80d605e775608eeb8. 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/QZHN72438427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae4ebda20314a3272be64ab7351627323a2b574cd75d8a97b22052a73ac586a3. 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/PT8HG2300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc035ce7372bddd4f2f27fa1b6a9a01079b74f6b65dbc02a4519bb886d29235c8. 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/PT8LB2300016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f38591d192686a08677afd47086e7c36459f7daf8f2f7f8b6c0304da042c725. 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/PT7NJ2300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6398b762c973155144e359d282ceb4bec7e4450fe1ad8f53e19a5ea89c3146d8. 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/PTUM72300012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf500d4851f27dc2ac82917a1a02f20a622acae493a5894bdeda9c230903e9939. 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/PTJG12200055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x170a1c2645c2857acf695d6caad0a0782cc0e2e2e971381b6a7ab6d6f4e8ae81. 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/PTBM12300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c24c5f8fff86a2b226903d2419eb20d0313ea07b6ed8b4356fd73d9c5513cec. 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/PT6IU2300014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf29547716602638173dfca67c5f914e5c478fabd26d8f78454a73348ef03d5c3. 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/PT7NG2300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1d1e9f5726b3bf553e1308e9493826da85daac9af0b21f561f4ee376b67df2e. 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/PT9GN2300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x579e2511c4a1bebdba9b6a11256508a8583a0e30492340914790f8bf792bb028. Chain 2 (Bitcoin): anchored in block 959134 (2026-07-22T13:34:27Z), 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/PT9IO2300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40f2908591c3ec14a513a1798611acdce855f2c38be9454efaaaca9c8ab43aa9. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/PT8KD2300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd2bc7cc4f38bc9adcf4c1624c78f0938a813cc6322966677552a50c116204f2. 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/PT7HR2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x485ed42cf192226764c0d1dac84e712c9566ea9be5e42f7741481621258ac713. 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/PTBM12300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc33085afc17f24f5da0855771274615ef5cfeb55990c22627ccccb5dbc713e34. 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/PT6FN2300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b8c98cb3e65ae8eae671a9b78933a7a17065eb3b46161ff70c9f8a30d451363. 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/QZHN72550094.
Soul Tribe (Tempura the Purple Boy Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x906cc88a854e074607b1aac34edb1c120d70311dd9b0cd2511f53dfbc8ba1412. 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/GBLV61818656.
Alabora - Foxall Pale Blue Remix - Mixed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb75ee01e6ee6581e37103518ce231d638f12b567dfe00c3fec5997285463dbc0. 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/US83Z2038948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d3b5b4ae5498494dfeb2bd06b93a1b6d11696c5798a5843cd192bb37d471b27. 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/US83Z2225645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d32012a7447ab2a4db5214653613dd1796157256d9fc182ce500ef4cfdf8b06. 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/US83Z2420572.
Seeds, Roots, Flowers & Fruits: DECOMPOSED