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 0xe7c1e057c9311643b20eb484e13e098ab11468194af94944ed387a6c40b23f1e. 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/f95f14c2-5a89-48f0-81ec-99d70852b174.json and https://artists.proofprofile.net/proofs/artist/f95f14c2-5a89-48f0-81ec-99d70852b174.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 0xf77bf09e030f8c7b9aba3546d59a9521fcbea30c7c1aa7a00548c7553ec44997. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/JPPO02303378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb68303f1317eb102088cd79b3f78ade7778fc9bcea4cd34183094901a8aaf9c5. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/JPPO02303957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cdb417577a3feff71363e3fe7a396c14952484d14d7ef24abbc3495869d1691. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/JPPO02304248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb64db7046ee24ab9fd746587050c48d60fd14f3e323f0a1498dc07cff9040866. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/JPPO02304561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a3099c4e7e6387d9097114b818bbb55fa4b17904d4dc7c1d17a4fb433912e85. Chain 2 (Bitcoin): anchored in block 958724 (2026-07-19T11:19:01Z), 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/JPPO02400790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc49d481dc9690aea1bbaa1c49164d9cd9ea2430ec39eb1aef76de6056910f40. 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/JPPO02403111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d90a6b9f58ea6795b39c3fd83695efbec4a452ca86386357a740e82eb0afa0d. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T20:13:58Z), 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/JPPO02404862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1089a416b6e733c09540ee61bffc3f6a236d5708adf704258c40be6b82e54264. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/JP92E2500175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49e8d8507365caa0ae56d685416a4128e42ae27ff4022ea039db5e9652d5ee3c. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:54:16Z), 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/JP92E2500176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb64db7046ee24ab9fd746587050c48d60fd14f3e323f0a1498dc07cff9040866. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/JPPO02304561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x247a3124ad4bc6c4e5d74e723046b108ef429a955530da3bb834c1bb75884eb6. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T14:13:39Z), 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/JP92E2500178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cdb417577a3feff71363e3fe7a396c14952484d14d7ef24abbc3495869d1691. Chain 2 (Bitcoin): anchored in block 957772 (2026-07-12T23:31:17Z), 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/JPPO02304248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x745ce8af41841b580dfd9db0e6dd3f6e4e95f3f841700188bfb6cb66df9d8472. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/JP92E2500180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4197b6408336b7ae401d60ed77172835528e5a2278fbab5523aa15b87249de27. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:03:45Z), 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/JP92E2500181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d90a6b9f58ea6795b39c3fd83695efbec4a452ca86386357a740e82eb0afa0d. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/JPPO02404862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc49d481dc9690aea1bbaa1c49164d9cd9ea2430ec39eb1aef76de6056910f40. 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/JPPO02403111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb68303f1317eb102088cd79b3f78ade7778fc9bcea4cd34183094901a8aaf9c5. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:41:08Z), 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/JPPO02303957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0485b3a432cda3387be810c6511151a19bff7deb98b54fe0ea00bc53123a225. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/JP92E2500182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85fa2f8806aa02f70df5ad59393fb629d97fff4792b558d2a6782943373049e2. Chain 2 (Bitcoin): anchored in block 958106 (2026-07-15T05:35:13Z), 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/JP92E2500183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a3099c4e7e6387d9097114b818bbb55fa4b17904d4dc7c1d17a4fb433912e85. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/JPPO02400790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a212d293653dc66dcc9f112049e4672f97f881f856f18573c92fae64ccb008d. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/JP92E2500184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa19d3c2622d882f1a34b60fec2591ec789ac36d102b170882a565988b871786a. 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/JPPO02406006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc66116cf79648ba9787ae833e9c96d94b33ac491313ca88ad7138c12b0524aec. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-19T23:36:36Z), 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/JP92E2500185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85fa2f8806aa02f70df5ad59393fb629d97fff4792b558d2a6782943373049e2. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/JP92E2500183.