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 0x749c8b7ce678935c522b7bec98ab03d80837157b7337849e9b367ced396b3e03. Chain 2 (Bitcoin): anchored in block 954729 (2026-06-21T18:16:07Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fb16a098-cfef-45ad-b4a3-cebf937813f8.json and https://artists.proofprofile.net/proofs/artist/fb16a098-cfef-45ad-b4a3-cebf937813f8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Sir J.J. Presents Fun Galore 1967 - 1968
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 0x6b8c19807bb94c196858f34786d88fd46b5e00099d83cdcec5532e132648e45f. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBAJE6700238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4a5c824f237f7b50725c99246e5bf049a7de7f83cdfce60d44a61aeab8702f4. 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/GBAJE6700665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3db3689ea0db093083eced89d5e64c6ec658930045b06b7426b428759f379af6. 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/GBUM71205553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d5d8cbf0ca0628840ed1e40ba99b00477598fba77d642f4e39d89f74ff5eb74. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/GB5KW2002148.
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 0x4b97864b14e77794af3e682d5f99931d36db05f5ab32c2e8ae1bc99c7cf33b8b. 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/GBAJE0504246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9541197755747e9427ceae281fef9e9e9e5c5d13742cb379230256157bf80f56. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/GB5KW2002157.
Explosive Rock Steady (Expanded Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfca651f6dbfc0d398def98902c69466b4bd0c54479e485b22dc30fbec41229f2. 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/GB5KW1600234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb20710120d80a202a44cd05b47bfbe31cafede803b91e8c0c6c9226ca138b71e. 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/GBAJE6800516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b0bef2a77e6392ad4eeb82e9df1e1cf26d9b816d8103a8ce9b69f40ee8cbe0b. 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/GBAJE6800918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9183ee76af3e5216772758a9f158a114c6380974c00be4a7bd817c3413db445a. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-22T00:50:49Z), 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/GB5KW1703552.
Seeing Is Knowing - with Lyn Taitt & The Jets
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7e2defda90bddb7ff29aba54a71a63b1f6585949eded5e2e9afa0f2196afc92. 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/GBAJE6700532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbf9838382fe6a740c2bcd1b03827f54e072faec09e2b073f255eac93d8d81ed. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBAJE6700274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeea57661a254d960457b05b83edc614694228101d9b3fb98a02595e063547c5a. 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/GBAJE0607198.
Now I'm All Alone (with The Lyn Taitt Band)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce135d32b5f355f8bafa4888a5463d39f2f4930b22a32fccadc6b91f8557c9b0. 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/GB5KW2101925.
Seek and You'll Find (with Lyn Taitt & The Jets)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7598cedbfc5a2c972231d37152cf349322c742e17b7156696b43c91a7d58fb18. 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/GB5KW2101926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb85fa5ba8a47ec8377858d2d7b73f82a6350ee62c2fec0ec3bb5b32fe4ee880f. 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/GBAJE6700488.
The World Needs Love (with The Lyn Taitt Band)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b405c6288e16abdbac87cead8569f767e797f24f8eaa357a09734629f520d7c. 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/GB5KW2101931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd481e3d68822d3e52db2e45e1c72ecd0e232c2ff23d66fab6cca1d0fd314972e. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GBAJE6800363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x431cffe149462e8d8cd403e562cfba385c7d7c5dd636cdea593b1b31df721474. 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/GB5KW2101937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fb260b20598a309e8ac82a24e750fb0ec54b6d83d7aab32592b502d97233466. 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/GBAJE6800882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74900dd4b95d6798b7640588644f1c2acac9b387d302c5921916d6562a678146. 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/GB5KW1902046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa17a3648b9da1140e195243907d2e4f325a7af54e244481df662db08d380f48b. 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/GBAJE6801039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x616e1d635dc9b94f4e1bbd05acc5bb224e366b22dc4e673f341bcb62179fec40. 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/GBAJE0700555.
Let's Do Rock Steady (The Soul of Jamaica)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda4c39542ebaa2b174e984e9a49cfc5c1bcca449e61e66d07d04c5bf91e3eb03. 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/GBAJE0401998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9823d57d5076ea3bcee4b79e7dd05caa5fbf7b9ccab61497311e052611759549. 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/GBAJE0613461.