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 0x9b943af51d1b82e86f08e6be5eaee73f2f13a7d27e2c84581c79c9ab6a9dd596. 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/c575e055-f77d-47f9-a8f1-c4181cf424c6.json and https://artists.proofprofile.net/proofs/artist/c575e055-f77d-47f9-a8f1-c4181cf424c6.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 0x8902dcb3a45b0f006c94a5d8bcb03371c1ff625d63e91c7ac78bb9e5cfe83527. 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/CALA49100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdd5f2048e0aa9eaa6c2d1ae89f3415d91e843976c6e870c39c18ae57009051a. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/CALA49100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed328fc6d3a822feb25e216e6ab7e1be93a62b16bbe488c5905266dfd4296e2d. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:23:08Z), 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/CALA49100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x699db4fc6590c45a658704216b46ed62129f8ccc5e8bce9e17945fd0a23abd29. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/CALA49100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60ae1540ab3ccbd972be73a754340b491d76aa82f412da59f66a8bd8dc97bcc0. 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/CALA49100011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc28baf6df998f14ea288935d5e8abf5b1e07478f35cb87ac94d2f8827927e338. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T23:05:58Z), 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/CALA49100012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63a0a312c20409bde0008730a3a3cdb7dc1a85c662f319ebc819c6b6ab1ee34f. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:29:09Z), 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/CALA49100013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e6e4d7a29eb67e261a503a5622762b830a7854f8953eec1656d5e13456e64d1. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/CALA49100015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7390861c14a886b97c5968397a54ea3d225ff7bb22630a7f78e5ff068fb67d22. 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/CALA49100016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d6cf8d60665521401a646ca30e0cafe1ae452a799ebe494e57c62edee0d5afd. Chain 2 (Bitcoin): anchored in block 959071 (2026-07-22T01:03:15Z), 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/CAOH41800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aac51b973387024e6444aeefcc55f8082fe87dafdbacd820cfebf1c9273805c. Chain 2 (Bitcoin): anchored in block 958204 (2026-07-16T00:20:09Z), 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/CAOH41800003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ef8df23ac0fcdf6d05f13e65736c00ff1bc349eabbcd5e465a77e0c8466f5ee. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/CAOH41800005.
The Kids Are All Wrong / In the Blink of an Eye
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80cd38d05cf0c28ecf3f997553f74c71e792e21b12110d7b5e6b8a708826c3c8. 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/CAHE21700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99a088362d132146761ea446e4352e4eaf1c2965da0c1cb47c0bef27445b564b. 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/CALA41900007.
Hey Kid (You Got Soul!) / Today Tonight and Tomorrow
Hey Kid (You Got Soul!) / Today, Tonight and Tomorrow
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86505a363a03e2ba4477bb81e9baaa46637b1ce62e4d820598180ad3e642a54b. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/CACA12311804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78b07d4a3a6abfd2d4607901309ec5b4d6c00499131896b7a78d1a0753ea840f. 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/CACA12513601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbaaa7bcddc595e98c084ffce7accfa034544321aebe47d3e15e468b1b5c8554. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T00:35:28Z), 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/CALA42500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c01ef89e398195c2a14a3a5edf22780db3bf90bb46720f156dbf87eb77a388d. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/CALA42500003.