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 0x28d0e3888f4a5854fd031b324050b07dd28c3fba5532db1dae01317e2d4c4bc4. 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/aec1f75e-6a7a-4fe7-b488-ec5141accf8a.json and https://artists.proofprofile.net/proofs/artist/aec1f75e-6a7a-4fe7-b488-ec5141accf8a.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 0x688b583a05c88cfea027331a75f875a276a4d0d901e7ad8b7007576d4cb6b8ec. Chain 2 (Bitcoin): anchored in block 957744 (2026-07-12T19:15:44Z), 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/QZPEW2414479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeee18051068e6dba9615a61a33fb28cc84467a3db4391f7d4532aef7cb48f9f3. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QZPEW2414480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x355aea18e650d846315801119b733ede6f0d551f7c7c8584b361526571f672e0. 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/QZPEW2414482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c2db3c84835f0adccfd5b7146534ef1750a62190e0bb1427347643a46abad2b. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZPEW2414483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7392d48ab79a6ca0e944ea9e5bde0cdc58bf0dab5d39e5e2704623690eb4ec97. 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/QZPEW2414486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc24b1dff5981a6d1e9b8c041e30e121b083704f5476ff3d81c7ded9e639660d0. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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/QZPEW2414487.
my head won't let me sleep - slowed + reverb
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba864d125a3f3a616469d36a8326ed68f5ba0c636e8e387eac78cf31093f8f64. 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/QZPEW2428716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3c59d6828e7b695d40619dabaa530cb12757e08b0078f9652c72490c0fd3164. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/QZPEW2428717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17bdf3891cc69de384246781584c89e9e76893513ccc1f1d6e240bdc32498cbc. 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/QZPEW2428719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ceeadcca98f03f9eacd2ae7c7aea2a3c576a3ecaecb3d6864a14d234ba997f7. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-22T00:35:20Z), 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/QZPEW2428721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd2986a005eb3e6d25239ff7b0645443bac5f69fcdeed4e7c8dfaaf13d774acf. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T02:14:40Z), 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/QZPEW2428722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91295ecf911ceb56e8ca489c89691b3d2771b94a91bbf36a3eb0fd42f2cf628c. 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/QZPEW2443911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x197842985dc4708fe3e68b991c83e80eb5358fded990b18f0533bb213f128c5b. 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/QZPEW2443914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe90e31b9ac0f658ba8a160ebf4d62892037800562d141afb123c1779425c502. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZPEW2443915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4c0e8547084d8435f4753d360b5dcd98c13cae17e8cde3101d9a1da9eae0351. 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/QZPEW2443917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff25402b0a741399e435f5978eaf527d7da9d60e83bee9013cb1a563c9bfc24a. 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/QZPEW2443918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3b55476cadc96241b6b8892aecf95bbb9f6fc1eadd2d5070e73ddd4d4b68a6d. Chain 2 (Bitcoin): anchored in block 958776 (2026-07-19T20:11:59Z), 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/QZPEW2445356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x063347e8229aab056d373f3724309343df99fc57e802bdf274783bd8f4a5078f. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/QZPEW2445357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fdee9b17c09599f1b9a018652a27255d7189177bde140281e6515d1f4072bab. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T05:15:34Z), 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/QZPEW2445358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b5c789a2aef01f5c6946a4ef213572e6a1df474400163299b097323fc5dcc50. 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/QZPEW2445360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68308d64d6b39d6eb52716c1028e88e3e5f2df84e50d98cc93c7b15b9413e2fe. 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/QZPEW2445361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcecb14cb3728eafea12ffa406d005ee1e8ed374cbbf46cba3c48100844b31d5f. 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/QZPEW2582922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07f761d12ddd6ddb16d1dec8cfc06ccccb443b5594761c20689efccaa544d5b9. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/QZPEW2582924.