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 0x556e60005ce1463c4dee4bdeb104b0301a7c6762b9f722513f28c265420cfe02. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/48b81fe6-d978-4f61-8e4c-337c5e06180d.json and https://artists.proofprofile.net/proofs/artist/48b81fe6-d978-4f61-8e4c-337c5e06180d.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 0xbafc0296e412872f2feba5c27d937531706eaacc1c7a6879e691fa25ded7c297. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/DEA311903317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2486e59d0335fcb5d1d11b6ef859dd303779d548474d56c8bd2ebf2e90e561d9. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:17:20Z), 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/DEA311903322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe88c50db9e78ffd8acadfed813cb9c6e8efa71625a85f5728f5738ac9b77e2d8. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T22:04:37Z), 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/FI3FC1657102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64d3f3e569e6bd8b7e00601cca570fa370a0f3cdb5ac81d7acebfbc6c3741ae4. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/FI3FC1657104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e172aeb1e6dbedea219bf7812aa23dda14dcdae9c6306c1610224c3396f5d06. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/FI3FC1657105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bf2ebcfbfbc2d961bcac3c688506211f7bb51f91635ae137e583d261769dd01. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/FI3FC1657106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61a8c04d81d38a68412924771049454347efab2b6bb550244c88dbe5986a414f. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/FI3FC1657107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0b9f6cff0ce426ad144a4a117daa3e19e631cfdca1544cc83d960e071cadabf. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/FI3FC1657108.
Solar Wind Surfing For Beginners With Dr. Bob
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36bbd0a75165b703a9f960e37b149ca73efed628d9e2070897594653fef9af01. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/FI3FC1657109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c1fcf7813071c3d79fa7e195f96f8316ad6c7eefbfdd0a36a38266f1cfa21ba. 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/FI3FC1657110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cb0648d67b8ae84a51350958e032efb805565604aaf788a1aacba9a51220b0f. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/FI3FC1200804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36530097872187bae1757688ebb45d56f350ea80891e888e9a60b017d67f6657. 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/FI3FC1200805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43224569395e1829e24acf3ea93825f2d7e486eed581fc5e45d992363fb6747c. 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/FI3FC1200807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85b4e72a209b7b9d62b20e33093d9f8589c8609c10ca8133972b24f0b08db51e. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/FI3FC1200808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x948aa455c5da8faf27406eb91732f9992b2ba5b5812800b9b86f552c1eda1bb6. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/FI3FC1200810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fa3751c0cd84c6cb411236f0f891536c6531ccbd8678f077f6f7da24c54b48b. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/FI3FC1200811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f60b9449004434e3b9c202aaaa349fdb39a6225bff8ec43f778c44a5f7b3397. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/DEA312100735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08de9ef811f42b70f39276365c4ca4bfd04ef57dfa2805b9faa245bb05457a02. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:46:13Z), 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/DEA312100736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x495dec1e4cc4c80620c1c29b222cd32a632daba46c96e2b2766ac1fe4003bc63. 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/DEA312100738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa513aef75b25a8fc58b24830c1189470ecfe851aa26e1002d96ab339aec4a37. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T16:07:51Z), 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/DEA312100740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04a697aae3c5e5633ba2fae081ce19d057319cab4a1c0e67000b5ca2b24e43d5. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T06:54:43Z), 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/DEA312100742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e6140f78359003a03ee5523ac19101cfddb48740e1cc063c23cc1990c990889. 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/DEA312100744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d50330d0a53cf38604a653390f1efb65fdecf948e69f65aa5bc4c45d98ea20d. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/DEA312300573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d50330d0a53cf38604a653390f1efb65fdecf948e69f65aa5bc4c45d98ea20d. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/DEA312300573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c2832ab592d5c4de37782b2bfb02a16035ae525084b3eab64cab8a6b3b0eb69. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T19:58:56Z), 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/DEA312300574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6553da925a582505db8a7ed825eec673f987d411819fe22ed4c9aa210e9023e3. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/DEA312300575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97193122d710af5c76a283d250646fab9ceb3298791181c871e0e6efa4a73e72. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/DEA312300577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f403cbfe49f8612e300541490c3b2bff281b8e5db189840d442c888bb44b068. 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/DEA312300578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6ad21a75d29a523276da65721a2e117392fd80f72178515f3fe0ed651555100. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/DEA312300579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6278481ec2d2779de6d784a89811ef19d76cee89606db85e4f1db1c8bf57e45e. Chain 2 (Bitcoin): anchored in block 958722 (2026-07-19T11:03:50Z), 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/DEA312300580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84976f18639e581be409648662806cefbe391db8290df0351f2de65fe207b1d6. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/DEA312300581.