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 0x38cdfb79de0470f20d8c0879bae8ab991b13fbc77fd09c54571317e75060403d. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3387223c-67b0-4dd9-9c40-179ed89db562.json and https://artists.proofprofile.net/proofs/artist/3387223c-67b0-4dd9-9c40-179ed89db562.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
All the Things She Said - Club Radio Edit
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 0x61a892c312718b21427b0180852712463283fdd910c96eba0cb29c905a9ee3de. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/DEZ380800310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73f8a9e17c4f53842ceac0c61a31e0f195d86b9817888fbb24362229bb32a3c5. 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/DEZ380500050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0c893baad6c7ed8e2fc29186b2068f3a1d21616c9807ccd379ac0e3abc73798. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/DEZ380500140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07c28faf3c548411e43830bd9c405b38e35bcd975dca4b0e3a147ff665fe778c. 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/DEZ380900261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf18b80d1604508b596671b86cf4fcf7cfbfa7d6d27658fc704788ebab0ab6f69. 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/DEZ380900262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdff4cb99f49ca946127a740c600d6f4460f5d75db764a90c8b80036307345f0a. 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/DEZ380900380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2395f07263ea053ae3b03762a6aa8b8c2337a0a1f48bb95a992f6e205d7b4ed2. 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/DEZ380900150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61a892c312718b21427b0180852712463283fdd910c96eba0cb29c905a9ee3de. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/DEZ380800310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf53bc44a8c2dd3cb965149c6df55a8ad499a6e4fb129add1313a058dde40a48a. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/DEZ380800030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0c893baad6c7ed8e2fc29186b2068f3a1d21616c9807ccd379ac0e3abc73798. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/DEZ380500140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4abff14f0b1253e71ff4532d17609cee771bb6df08e5e1c50be9e413583d2ab7. 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/DEZ381000040.
The Power of Love - Rocco & Bass-T Remix Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31a050386019f049367a0e73822777a885f9d67c5c7968c41bc275766ae73163. 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/DEZ381000042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa494654453a625d3ef0a3f45c2198c01d36b7237255bb332efa53eaf7d4e7dae. 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/DEZ381000220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf090998b63a1adbcd138c9e79a5e94db8943b8fd708b51bd17e8e185ff21c42. 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/DEZ381000222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x655051404308759dcd5e08cb99f2ced65a3dbd9eb13b768f01d45fd17697463c. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T11:00:34Z), 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/DEZ381100150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d7a0dfe1c81549878a0b5ec8da7de30027120dcabdf29448f6fb252ca2e8c0f. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/DEZ381100151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x514e869edac2f1a3c48910f73c3dd9990430a3eb981461ef6e047e237f327d94. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/DEZ381200163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88e5901fcb828edeba909f8cac701dd80b60969483f4a889afbad3d95b90466d. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/DEZ381200260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe90d7517b9f7faa46d81c5a767e8962c4f598b41d365bfe3e08c7d7ec63d5027. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/DEZ381400020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe90d7517b9f7faa46d81c5a767e8962c4f598b41d365bfe3e08c7d7ec63d5027. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/DEZ381400020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x093f413308d59170faefbb5bdad3546f3abcdf112c389510b826e69bc2ac8cff. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/DEZ381400100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaead108657429d3cc64c063ff50f94de8db3c05516346cafbf6dec486bb33bb. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/DEZ381400350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc74057d95c4c03baf7b0931a617e93ffc8ea0d6940edbb68143edf32d59f2654. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/DEZ381400351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee53a6bef9b8b14ad55dee2a998d5da258102c0423d0f0378aaaaf2bc26a882b. 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/DEZ381500210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4172b170699426a434095b313a0d8b15147985882513a1c88a153a25a0e2395. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/DEZ381500320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12a7c821eb23d26fb892d2d33d2097462f4b12402322db7a71b4e315db7930fd. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/DEZ381600020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf84b6dea8e10847080bdb039f5260e61e9215331b62d6d5d077d0bfb09034b2b. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/DEZ381700011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6afd404f9291a1a155964f9d80bc105deb775b49467233552fc0a377cfcb54d6. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T04:21:55Z), 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/DEVT81700020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25d148f13b1e213323f26a2ad35981a823e73123f3791ad594b581a575ea1896. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/DEVT81700210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3890590a95b8e95206d553ab4331a037e9ece641f22831cbccde5996daa6dfc. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/DEVT81700211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25d148f13b1e213323f26a2ad35981a823e73123f3791ad594b581a575ea1896. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:35:27Z), 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/DEVT81700210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3981d290eeb9f4ea7f39e8beb2f971883d1417870091d58a11ded7b4bd1f35fd. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/DEVT81900205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7fe0c1498c1deb7007ca07e73396dbeb62161744ed511006c21e4ea41fbc52d. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T05:47:14Z), 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/DK4YA2002401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7fe0c1498c1deb7007ca07e73396dbeb62161744ed511006c21e4ea41fbc52d. Chain 2 (Bitcoin): anchored in block 958756 (2026-07-19T18:58:27Z), 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/DK4YA2002401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7356ee86b7d1d841e390279cac8b5774e372f2591fbe44a350235511f448979. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/DEVT82400030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d76f264b8fcd82c461e6497440b6eb910456ab92e224963f3e3be0295994e28. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/DEVT82400240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8367b91e50b67f54074558366a5a2836db8ce9194e68d62cb591a2f2031eeaf. 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/DEZ381600250.
Mysterious Times - Kindervater vs. Jens O. Radio Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b45ee8ac386d9e181f12bb51387a6d35030972f2e70cf6c5522f7bdf0f94ba8. 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/DEU770800013.