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 0xe28c222cba2f528dc213d54dd25633a6108180f7420bbf619df7953cb0d2552b. 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/7669ea12-7526-4f61-8d22-f1cb14c87994.json and https://artists.proofprofile.net/proofs/artist/7669ea12-7526-4f61-8d22-f1cb14c87994.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 0x5005eadfd9a603ae18c88f7dfc556f939fc82e4663b6329a3cfc38291a07eab1. 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/US83Z2314620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe79e05874ca747cb20920d7395f4fff95e3072c7882463022bb520a59b10baad. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/US83Z2337791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c715cfb0aa10b140a27321d17985a6e0bb9fbb277a14832c7dad4ede4a578a0. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/US83Z2337790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6feb820184a3a2ea4c8edda80c75a1f7720e2a443654ce6d7f9f02557fb7b1e2. 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/US83Z2351476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e1b8dc7ad3489c828a791e4f11c5e6910d836818498cf5728e5b9f25b9d26bc. 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/US83Z2459838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11613084f13dc370e9db1a101564ea9da57c93333dfea5390e45b5bec3219876. 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/US83Z2488691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x596a62e7ac40ccf57dd06dc3e2cdf47ed1ea4fd5095d3caa11c695cfd8613cc5. Chain 2 (Bitcoin): anchored in block 957012 (2026-07-07T08:27:05Z), 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/US83Z2427689.
Moon Light - Illias Katelanos & Plecta Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e04968f595858afd9190802ada5c4bc849661f410a7a852247b09a921a9bff4. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/US83Z2427690.
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 0x3b044e5d9a2459fdef8e6d01fc6e77f541b6a0573404b72b6f627f66e089bb82. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/US83Z2427691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95c158c163187d160c1823859679d32717f6f1c44a678762d54047e47f420881. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/US83Z2503251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x775ace46f7b129145e128b28902d6734c0c33101b069790d00bbc171f38f6911. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/US83Z2507674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19cc145840d25d05eeae346a03808c76ea0c9154e9defb9246ca14c217e5427d. 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/US83Z2515824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30547d584010267b3fc81f20dbd0ba4867dc51db3852f5e19b89fd73dba62836. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/US83Z2521726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdede479e39074e325977fc6a524f15ce6f1aeafc5e377052ed3bdbd551239699. 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/US83Z2240239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x114da3ddaa0c72acb755037c722c450f7f7fcbf96e43ee5e98afe229b60451d4. 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/US83Z2240240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc427542cdef7e30610a39d3f26f8e0791c5c4291a659ae7061f2e54e3fff5a7d. 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/US83Z2237802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x452783347abd40330bc6b40b1e91c02241da9cf82b585f100ca61f3fd67fa7c1. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/US83Z2307815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b8a516eec58b86ba279cfc065b3e64f79bd268bc1ed9fe8abc37b2659609002. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/US83Z2354756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6fa332fd6e3acf8fbf8a711fec8c942018cfbf76eed7cad7ff4a52b8337b06e. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/US83Z2240238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89315f9e7a504fc938182893535704cd6b514aade6f28a6eb29af845ba380276. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/US83Z2307255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9f894acdf172de464dcf9f235e2cf507fdda41ef1b257f538d67d67cf3a16b8. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/US83Z2304544.