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 0x233c0402332b42b14a256513918a45872237625f55b60b35a63bd7da22acc76b. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/35d66f72-80bd-4f96-9836-fe1699237e85.json and https://artists.proofprofile.net/proofs/artist/35d66f72-80bd-4f96-9836-fe1699237e85.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 0xf711b48e140a0ba9a13a7aa34a95399d8e7e4b695462ad9ca0f2ca0d37e4e513. 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/GBUM70804174.
Ties That Bind (Further Live And Rare Temptations)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15728e62f23aa2a41c5e451294d4d30a27fdcb68047d1cf46f9b724c0cc083fb. 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/GBBLY9600036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8698e61115d4b0276a3e7be50cd44588e80c00d894731f021369c1ce9ba85ea7. 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/GBBLY9600038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa70eb2026a87015efd3adaff679bb17b36dfb2e3accf138b12bdb1583ebadcd1. 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/GBBLY9600034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99a20b31a708c2acf9bf79686392de2961aa04e98928a674fa608038c9cd418d. 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/GBBLY9600030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0c7dfa3fa2c0d30f8a38c6ddcd8f610b105c268a91b70f8a89c1569e8c956b0. 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/GBBLY9600042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdda7fb543e8febe233cf59897a4a3455675c9bac2eb06695170136ddac853065. 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/GBBLY9600043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa16203b966cf3428e3d405f46434b23d8a38925c95086fd094f3c771d41c11ea. 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/GBDYU1500108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x847d6523b1a7d81545682398f8f47153c1adc1046b4180e240225706559a822e. 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/GBDYU1500109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x065972699d0802f39d13130cfb598dd3bb9264acc53c8eef27f3567191b737e1. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/GBDYU1500113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f9f7e76fadf263e380e2cb244909aed13f84b538cdfa87eae24c9a061b05bb0. 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/GBHMX2062401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x043e188c03ed66cb059f644e1c51586f50fb3d73a4197d04eda384701886a1cd. 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/GBHMX2062402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76c3055385f975ae0c9c0381485b0933e197e29c851ab5adba546db84cc92828. 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/GBHMX2062404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4447841e6d4d44c56673b918fed18436b7fcbb3d7c7e1b772ee6de3b66854ac4. 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/GBHMX2062407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa35286478016524956820d3ebfb0812d15340b351bf319d67bb0d4017c0e04f0. 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/GBHMX2062410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd372c61519d086116ce8743bc40909f0ec7831c3b2499eafa69a77fa29ab8d06. 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/GBHMX2062413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3950cb6e4952943e29533922ea252dddb62c8b6e137b563b870a644bf859aa9e. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/GBHMX2062416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd40cf66a1ac09102a5b26f2e9ce9771ef4abd23f52d5afa63de57b60890e6474. 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/GBHMX2062417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb68a402d6dd06b801d66617beb2525cea4a94fccc1b38104ca80bb57b31127ed. 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/GBT7X1300208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb6aee49e402254dbfe614176dd951e8b3d192fe77ff5e52d9895b35b7f86256. 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/GBAYE8100211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd842dd0b83a705180dad5112fc6c27eda87a51114996ed20f68cfff999c582fd. 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/GBAYE8100216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99a20b31a708c2acf9bf79686392de2961aa04e98928a674fa608038c9cd418d. 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/GBBLY9600030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa70eb2026a87015efd3adaff679bb17b36dfb2e3accf138b12bdb1583ebadcd1. 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/GBBLY9600034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15728e62f23aa2a41c5e451294d4d30a27fdcb68047d1cf46f9b724c0cc083fb. 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/GBBLY9600036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8698e61115d4b0276a3e7be50cd44588e80c00d894731f021369c1ce9ba85ea7. 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/GBBLY9600038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdda7fb543e8febe233cf59897a4a3455675c9bac2eb06695170136ddac853065. 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/GBBLY9600043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fe18fdca3169b4f9070e3405db3b07b88d9a1ca5c8246293089dc0303d619a0. 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/GBBLY0100244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fc0a7f85d0be1a7ff55e68bf7df7855e3438c21c89f38f9ab30bdff87417cd0. 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/GBBLY0700606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b6c3b5086cbc26b2ded0c7ddad7677f4609ce1c7969506a21d1fcd4793c22f3. 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/GBBLY0700614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb46b393e4a8a79f62aabfccf80649b32a1562a2126f19f24e2f8dc4986fb38ba. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/GBBLY0700620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b0a965c7d8bbb0d8730d3f4484c891342ad4a72679977da5eac00a92bb2d190. 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/GBAAN7900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf13d2e561ae3a96070ffd521d1f5ea31d4e8f8dda01df88d4c3e736093800e4. 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/GBAAN7900003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x483dca15a717afddaa92afbd93e6f097a5897df46faa0a13b0e2b6860a0f4806. 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/GBUM70710421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd200eb9cc8a999d5b93b80c759eb0ae1e6d1ebf04092d9306429ce47194aa7a0. 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/GBUM70710423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fdcfe373f38b20e00163c8ddbadfa45ca96855afcae1d691d60ebed9131753f. 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/GBAAN7900004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecf27164950d331d104da367ba7a578c1c22beb71ea531edc0ffd1f6158a6da7. 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/QM6XS1575723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5421f7595d9baafab1c4521577e3f898b29e1bc9595179b979e0155fc04273d6. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GBAAN7700008.