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 0xe366aa1ace462c913cf9df60f66ee59f2bfe58bedd0bdb2fcf32d6a8cf0bee47. Chain 2 (Bitcoin): anchored in block 953687 (2026-06-14T20:19:15Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6968bcac-6cbf-446a-9857-8040933276ac.json and https://artists.proofprofile.net/proofs/artist/6968bcac-6cbf-446a-9857-8040933276ac.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Pastillitas - Phunkadelica Mitsubishi Mix
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 0x2285acf38fa7813ddd9746af79eeda07278f652000b7d6245a9e45f971cfb18e. 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/DEY472474301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0479bd97ea01d6107dbf46af1970e3ab09e5bbc74e7f8a3ff93629ac2a5df2be. 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/GBKQU2442122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb161237d3d98c9a84228176d68c3897f6f9cad4eed5fba9888b3a1484442b110. 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/GBKQU2442123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ccade922b8ea01efcb24cbdc541c8b307efa329fded6a385f6dbb866d3b4ce9. 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/GBKQU2421211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x373575fd3665a07d8432a7af89e708ed0de7c8430db86297cd66a56c9d304b64. 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/GBKQU2429701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f7865a054ebfc39f9aa800b02bf570ddb4fdb22357bbe1eac1c3d9d590703c7. 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/GBKQU2426419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb3f4067cb7d004baea56de7292740082e6f4ef4a1f7fecee25cc444044e778a. 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/GBKQU2395535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c76766f0d36dd2161254cfcbb21269710436a02395758f00fd4f894c0f82ecd. 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/CA5KR2387718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb91bad5d9cc2dbe5ddbd26b1f3a73180d185cadcd4211759cadc158c80a13e4c. 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/QZWFN2419175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff15e427eb41e83d4840eb77b496f8f9ee36c6e75c0e9bada37893ff16123a04. 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/QZWFN2419177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x427ddb2413a79833a82dfcae1baf37a37b14ff16b25c4c3fd30f87cee7020c5f. 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/QZWFN2419178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b79b56dd6575ad623b0cb4eafba63023030c0b9cdb1c1492342d7dbbac4c820. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/QZWFN2419176.
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 0x6da84e871ede8e80b12f184f577293cab0949286437b98fbf00a21d501956930. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBKQU2508752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96185f61cff083bf6fb10763d8bb8a0ef60af9f5c67d20285a8057c3021e4e99. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/GBLV62407411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6ab7a92fbea512f3637a3278413c3d582de6608f38985c6709a63a37f712c9f. 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/GBKQU2495885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb58210cc53b2e5a347c832f6460aaf34cdd227504b541c81574106c5d8fc586f. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/GBKQU2495886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdda8a8e027e50078c1f53f8829b2b81384bb0678e419829accdfa0cfd6d28ce. 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/GBKQU2484318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bb744dc1092d5ec6eaea6910b1bd517810bea4711e5ed6a09cedf4ce2d1b41e. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/GBKQU2474357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ff5520e3b9c5e01868b16919ade93680bd17456bd044137c1dbc5b8198d57a6. 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/GBKQU2439128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa66aadb2f67258d9fbf07a38809bfb3982677453d479d71c8c218abd7c319448. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/GBKQU2405223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c0a34844527527ead970480583bb7918bee63c2cde6b54508d44b8ee620c2d5. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/GBKQU2405224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd388ec2239d655684ffe8552fd0d648d65e53b4ad8684e5099679bcba7b05026. 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/GBLV62307528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4101a3b462966cd0adc87ec1fc6081acff28729e4f3419b08ac483f9fa36e5af. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/GBLV62307526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3ce4aa107477ea5772db4fe53a62c2a035a2e69ea20495bb7ea89a03c3c74f3. 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/GBKQU2416695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x387a301e7fb3b9646b22f2d11e9685845aacab0565240fb92c68a07067ed3f19. 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/GBKQU2371382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9efea01760d0f296b2b01c4aaf0dcc172c84e7ab33f2ad790fa49d2c02833ca6. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/GBZ262013280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0948ef17070dc735d5493f8ebaa343b8c68d9fcf236ab97e17bb4adfd4ed6be. 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/GBLV62414104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dc307923420103ba791d0f8b6aee753b74238aca785f18021831d97340f2113. 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/GBKQU2515201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a642c0e227841fc83833f60622368ac0e23443f385dbebe2bda7f010703225e. 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/GBKQU2437118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x926ac691cf5642eb4b79f0f8da856f2e5ce2c04576200edd19e956128185ad17. Chain 2 (Bitcoin): anchored in block 960435 (2026-07-31T16:33:26Z), 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/GBKQU2387006.