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 0x247f74b84dc7cd9e44d5632f1a54d24f75071df3dc3dbe59b6f49e3161574650. Chain 2 (Bitcoin): anchored in block 954631 (2026-06-21T02:46:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d1709b93-2072-4bf2-bca4-478bd4d9c322.json and https://artists.proofprofile.net/proofs/artist/d1709b93-2072-4bf2-bca4-478bd4d9c322.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 0x1a904ecebbd508ba0182267dd3fd1d1b86cc56107dd38f993ce3f7b3bfd326fe. 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/ATT250612600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaab77e76f45de8078728456a2ff9f133270304443878e9f079878259116a3d70. 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/ATT250506730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09f9a008f16a5d2f0a908ba9866b401951d9288b14f064eb2cb57d66270cdf02. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/ATT250506720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84d11c365dfeffd580b958f3394c50984e049b7a8d55d26266bee68c1c6d794a. 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/ATT259718360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb620edc790a445689349ee18125ee1ff94b8e7a5d66b5def00d91f82e256b26f. 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/ATT250605590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x615a9b09d108f4972e770e18a3614808891aa69eb2ecf498dd362a680071b21b. 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/ATT250612670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26fa5e04eeafe2163ca5b186f48ffb288644f9e7c7efa3f1affa77125d56ed21. 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/ATT250605570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70e5e11185f4e100302024a98fa8470557b06a9bcb3ec3fec38382863aa6e38a. 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/ATT250612700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e04a227f83f5eae05f75e234d6fcb22dc333193fda71949d8fe5975d0005417. 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/ATT250711080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d00d727f2882783a1b87438b6b6bc2c344759db8b6d87639175f34f344a1871. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/ATT250706800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa02225dbb9ffdbdc029cbf5a436b2435323157943217ac3719bab36b6c96ff04. 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/ATT259913090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a02d3ca682501e10fc35ed62256396e36b20203d23c2b2f80764343569774e9. 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/ATT259913100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd916aec1a67b7300e8414af4113da9660ca098f6f25fae14028880f4bf529271. 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/ATT259913120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf21ea4c0e84438cad1e9ee12c35689d4902b54d85a4da13195450326105fd279. 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/ATQ060800108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf3b586a919470ed3f48476a0841488b0dc335657dfba180106792310ab5c56d. 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/ATM891202041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x150cdf29ada48b77f1966c0d73f4a6f464ae1cc438b125813bf964c76757d3d1. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-21T16:39:23Z), 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/ATM891202055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f9223fedddd495ad5cf52914dfd3db9fb4219084f062cda124333a4c7a1ec5c. 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/ATM891202054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc71bc15af6c505b1e7a90ba861ffb04817b5708ccff6c11cf349eacbcdd318ff. 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/ATM891202043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x419c876d9c088580f29c011e3c39e2deea9cc5b157796ff4abf4aa4470dbf1ce. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-21T17:09:00Z), 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/ATM891202034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6dfc41d27c3b0edd56b488e2e84a7fc7ef86d6d9fe847817db856dc469089eb. 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/ATM891202045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x332807b2c401fe411a14d034bbdcf25e3b6fd83a60862f86a481196859b24d93. 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/ATM891202051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25fc2d53ea49022f35586622578deb9f27936f3cf224310def44c2918e74254f. 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/ATM891202040.
Manderley in Flammen / Nein, weiss Gott!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x763e6c628c1c6b6181c29ddb10589f809721f0051a9775e6079f88f4950f620c. 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/ATM891202059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdd842578a16b8a47d99a8cabb372b29c3029140f80fc38262f93b3214278367. 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/ATM891202036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa90d55464664919faa481ce755eb3ab2f63730ee047629fe0fffbaa897d78c7b. 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/ATM891202015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44f2d941a34dd36b7c438bcb1c087c15019641c062347bfc96b8688e6f475124. 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/ATM891202028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aa00821a6ae608c7bb40c6121d0231936c2216bc7be0908e5672ecd5222351f. 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/ATM891202024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7e170e134426b8daf07b90ec3b1715726d7c80df47d3fa3edf80e76ba91c280. 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/ATM891202037.