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 0x2d9384d0cad06ace78f2cbba1df7decbf21940875bb85da93a4477d6145a8c17. 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/44786702-fe0d-4f3d-8a3c-85a8c0d80166.json and https://artists.proofprofile.net/proofs/artist/44786702-fe0d-4f3d-8a3c-85a8c0d80166.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 0xcb09ab2afd938a734f8fa9d1e71a16bbd7bb8dd70369219c7eec9420ef6dc019. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/FR9W11932153.
Protected By The Ejaculation Of Serpents
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07b937ec19ddfb7362abfdae76a8f0ac52e7426bf0e9c91ced42e597788c018f. Chain 2 (Bitcoin): anchored in block 958738 (2026-07-19T16:07:22Z), 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/FR9W11932155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05bf00213004f338dfda42256df3ede84d771cf9080193aa21fa3ffc8b9d763a. 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/FR9W11932156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x154df5426c6e6a5413b4d814757479cdc558bc114b341ecdce45e0a2c0c80f21. 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/FR9W11932157.
The Great Saharan-Chihuahuan Assimilation
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe50b4921f6533d0d266fa8b99f266855832547a6b51e93b83b4082461d43553d. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T08:56:51Z), 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/FR9W12144969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd842a7ab07f3314526188f25e448b4aeb8bcfe9ff86efd12537403ade8d10552. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:28:20Z), 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/FR9W12444887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf973016a25a054aff759df12182c5cba3c801871772c023bb01d2e952814ef83. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/FR9W12444888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x595519213f9ae1868952c0d3eecd62f618ccd89df14ef09de853f0d1b7e61630. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/FR9W12444889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda7f78bb6ea966aee9768f8c617afa01aca57e395c61f341ca8504d726583cf7. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/FR9W12444890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86b2aa8857f9d7b70c74b72cd0036988e03971b40064876fb31bfc5013817ba8. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/FR9W12444891.