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 0x789ccd578a6d3538c25555d9f8996231a7424b3490b23a3e1227c0851196d3e6. 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/4f12998d-e74a-4430-9bcb-e53ca876f936.json and https://artists.proofprofile.net/proofs/artist/4f12998d-e74a-4430-9bcb-e53ca876f936.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 0xc101cdb5ba7a6ea8ebedfccae7fec89cc25f52ee4b02d56c5eac1bdc6354b0c9. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T09:23:36Z), 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/HRA042093649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x392a949178b6eb2955a9bb78a21f47140d70d708cd58f4d2529cde3c866c5082. 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/HRA042093707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc92a40b12091f7ef582c44cd5f4d23fb27ae3869279bb2916355dae0934ba1f5. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/HRA042093892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2436644007f19ef929450d36e50b6ec455d691ad93f595507f9fbac762f659ad. 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/HRA042093900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb452119c5dc2775be322fc905282a9695c267b5eb82ec37f20704ef325898729. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/HRA042093765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8529b8ab22c5877d86e54ebf6db87524860cac30b1ec4e540dfb9be605cfa2af. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/HRA042093766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffebe60c9d55e089f74e2925397ab18ef824e0dd9af0ae7b874fd1a9fbb00da4. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T16:18:05Z), 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/HRA042093512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0d4961da00c511d3373133ec37e9cda9ccd4b4ba311b6f47c39dba3987c9f7d. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/HRA042093515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x611765c02a9e3bed7c2dea10a9fd3199105dccce9cc4c81ea5918288e55e3546. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T13:25:48Z), 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/HRA042093835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d8e82fa318d01ffc0b16048435e0e15ce53c214e4bdb1d6807352aa2a635bd7. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/HRA042093930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf99e13780c53edc60d906037198264e1bdb3e54b265a61a25da53cd04e5a2e7f. 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/HRA042093933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb881de63d14ff81fa3fff997f162e43150aaed53b60d49f7b0867e5f6e0136ec. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:06:22Z), 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/HRA042093881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcb356c0be60330ec91b64e7defa88728b1b48c3165f880eda1bab80b848f67d. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:29:40Z), 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/HRA042093884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe50e9d8c220fbfc91ffe516c1d9c20bada27915626bd69037d09d36481479edb. 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/HRA042093946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bd4269d66d4b7b7e29b9cb8753072f44ab1318854d3b9a5002de9d099832a40. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/HRA042093891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9e91dce5673450a67805421d80dac37aac1e40773601963f16e59a1d803cfd6. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/HRA042093869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf348a1c4482a3e2c8e40ae3e021824c7e5505327d9832ac452233c68d0db1b69. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/HRA042093723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cddd6e29db11767b024aefc19ef8d9d96e3201981982e4b639d86d6c4b7b869. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/HRA042093750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25f0269e84412ef5f8eac4128f0b496e90482724813469accd9f18043ddc7786. 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/RSA221813168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5ef0658b731544b18c32a302f30e4c399093ef6051799fefa26c0010da2f0f8. 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/RSA221813171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ed5d077c22c2dccda5843f9d105ab8a46a6402b78041f827463de09884ab868. 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/HRA042093964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eff19ecbfdaf52d58f6ebe4a682fda113652bf419c6fa1fc1e3362337c9b3ca. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:07:27Z), 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/RSA221814441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3866f351707cab29c08469d0226ca67191915afb97a230fc6b3174ac248aa1b. 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/RSA221814444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50ec0640a09b7ad61772c57579a559af86fba99274f719d5f1a901548321c60d. 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/HRA042093958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a3b2ad1d292547d319c75c13f86e116097e1b8278d3775c944535aa8acbf322. 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/HRA042093960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5da6df03c9b486f1f2b06615d160d569c9e1d310bf3ac121b2276c8876ad3f5f. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T15:00:06Z), 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/HRA042093913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcc734a649c0060261f7793940f907cf0d7b80e291c9bd87043bcf9297c3c20a. 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/HRA041788244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcee1c6d9adf2455f0937398db1734fb1bbaf3c74d071753d893cc0aede2645e. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/HRA042093984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb02c177c1e109393c3aa69a4892d423def9c3cc4534737b1a382793244b0c7e5. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/HRA042093961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d43e8112244b6fc47db053afcbb6cda08b53d79e13edb4924f04042c5116d06. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/HRA042300468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbae5a929e7359d1e3416de070d5cd829a384abcd015a11b5191baad59142d425. 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/HRA042392233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f5e001888bc827194b143e930e24ec04ce90b2425319610b8288cea2a0a4b9e. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/HRA042400399.
Mene je učilo vrijeme (Symphonic experience)