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 0xf45a6c0ad490c9736793fc9e97381ec46370f58cd44b678fe30aad8817c66759. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3dd59a28-75fa-4285-b5d9-b64025480283.json and https://artists.proofprofile.net/proofs/artist/3dd59a28-75fa-4285-b5d9-b64025480283.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 0xc2a0190cc96adb25edc51f2c78ea7283820742d83cc100df5d103b8e49ddf9d2. 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/NONTC1602020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0636eb037b5a27481ba0fbd3d99d651d57871f3a9b966dc9c3ccbfa50879dc01. 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/NONTC1602060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17d7cafda8edbbeb1073e5e4ba848e68a9c3f56926da5472a4f2e2a42a758116. 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/NONTC1602110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9b9a08dc57d90305abd3bf0dc4f8c49b984b3e9baac14e42f8404b464c805cf. 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/NONTC1602120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6be7f54669db41fa82b04b9e59a017a8a74a059b29153b9d32340a9d953640c. 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/NONTC1602140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa19d8f2687b21c13a4cb245925d0f6406f6f2e6dea0fbf6340492f728c36705b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/NONTC1602150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32b417d2072d6a075c291832c2093e608423b8a218f062f8c295ec67e26ac28e. 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/NONTC1602160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31cff898ae381d2b92c438485a49ede7b348fefb68529ec87a69d05da9036f6d. 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/NONTC1602170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bc9ce901bf8a6d698cc2228cfc12944d5f62d8cb7c53f12b4e0dc99363a4634. 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/NONTC1602180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3872feec4efa7752d94da3c20194c07594278a094a2713a67ba67b46562841b. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:30:04Z), 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/NONTC1602030.
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 0xf1d1862a8b1cd368697e45b92f78844f16d278c8dd26f9a1f8a49ef003087098. 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/NONTC1602010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4abc7a09674442619cf1257a1aed515b2a56abb7ccaf82e5b54c454e9841e5e6. 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/NONTC1602040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5aaadfe755289057a233269f61b1a890869288a38feb7ff75f476e3b7638f51. Chain 2 (Bitcoin): anchored in block 960161 (2026-07-29T22:51:26Z), 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/NONTC1602050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5316d7d1699472511561a821d439ba1a8f0ae8e6ad927f00a1d426828e1e008. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/NONTC1602070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3621386f6bd3b360fc7c171df07b39dceb087d02782d3d7a68d30223a629936f. 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/NONTC1602080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68082a46c511896033e2d82e7547c02a4f5d605ccf6ce77aa894db7993ca6f37. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/NONTC1602090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcbfd27468351764938975da6dab6d142f9d052ff0d091440e42578f6f9e4609. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/NONTC1602100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5907eb81c90558951a20f8c6bdeac91eb05ba7ec2db9697afca3d8dc729aca2c. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), 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/NONTC1602130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9156c806b6a67dccffe78117a2bbe452d443b4c3d954503ade25d856981cfc73. 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/NONTC1601120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe075946ce6b6d183c633feb751facb115744689f2eafe16a24064b873b600932. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/NONTC1601130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf219f8c89dd01b68f9f5e495fde5c3df46016fa7494545cc58405b009982576a. 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/NONTC1601010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x421a2caa93b34a70a7345a09964788897db03c0279f5a11d0848b3f2eeb32d00. 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/NONTC1601020.
For så høyt har Gud elsket verden (Joh 3,16)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x857885e08f1bf39b6b1f9af68ad1c3c326fb7aae369506dd247e7b9d4346e6b2. 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/NONTC1601030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf34a3e3258b695b1166e36d13812abcf54ffffbb6d180d24fb94d300ad48b032. 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/NONTC1601040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4e6ee1f3f5e6837527436d2c8593640ed6bf34d9528dd85bae2c1044d627c41. 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/NONTC1601050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0911205d4a51132d8820b3e639b75c5ca2a064b719a653f59bde4d484ea3128. 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/NONTC1601100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d400c99ffa5d6ca4208b54d017977d923768c7d2b79ce4a3b3a907e6724a355. Chain 2 (Bitcoin): anchored in block 960311 (2026-07-30T20:45:02Z), 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/NONTC1601060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2262183beac5d349a793d90aed3ed91bfc9b88fe61c4b70f29d3e9bf4fe8c18. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/NONTC1601070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c8bf757847c1d1b4c2cbb0245baf8113a10b5eac56253d29688b06e0bfc0117. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/NONTC1601080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3d18ba16017957c7e073ca7a7f4a348a154d71c1e86e0e2d7526bafa7a62a48. 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/NONTC1601090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02571a8d4bcea30345e8c4ba31de72ea311236371f074b79b5d58eda569306b2. 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/QZNWV2349634.