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 0x36fef2b7721eddf4af94556a37a73730b72726cf34b98b8711a46426bcdf4004. 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/f9f42d13-7872-46f7-86f7-cddb4b73f8a2.json and https://artists.proofprofile.net/proofs/artist/f9f42d13-7872-46f7-86f7-cddb4b73f8a2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Girl in the Woods, She Is Your Destiny
The Most Beautiful Thing I'll Never Have
In the Darkest Night I Will Be on My Own
You Drown in Tears While Your Heart Burns
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 0x9e8aff0dc85228e7c39b6d2d43afbe138b88eb6238b7be4b5f5fbab767248618. 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/QZK6F2093506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4e82e5f1206571ae3453299b208dfb4d564792e945d3872962564cb1dd7e453. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T10:52:08Z), 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/QZMEM2012613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70211e72b06ed6262225620e95c3c46b8fc60b602453b7a6385024b88db4a619. Chain 2 (Bitcoin): anchored in block 956862 (2026-07-06T02:10:22Z), 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/QZHN72068278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16df2fe0a38576e8ba2868bc62d9de2dc89026b929c62cc64a7464358cd616c0. Chain 2 (Bitcoin): anchored in block 956404 (2026-07-17T02:43:56Z), 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/QZK6J2085963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88280ff23b31f71bceec3569bd781f9146eb4c02348bc7cc6167c275bd0efc06. 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/QZHNA2088560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc685f78f1bcd42eefa530b0ca434a421f74d0adff4132fa137014ba7d175c8d9. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZHNC1919169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38ff6066e2c4d597352f6cd24a852da3e9c9f0c1363cadd3e0d4cfad8cdca9e7. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T10:44:06Z), 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/QZK6N1904832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa63eeac163c35253922a208e1aba351af0c9dfbb705f5663da158f5b6658fc2f. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/QZES92225153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc22bab42c985eed7e277c2a405cf4b1380f5498137c656949669495d283584cd. 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/QZFZ72229310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4377776afcee5fe096509b80f5ba7b7324a6a6332626b20dbd8b999fb2e1b7a7. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZK6L2226930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6676d3f842bfd185be7a765f05e2d98246b00dfeaeddf1495c26f9b4ded6cd47. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/QZHN92288437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9a532744bd8a0e693995693cf4e5fde1503276077fbc98c166ad1eee32ebf4d. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T16:37:19Z), 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/QZFYY2277302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82f7802eed72c372b37951a553b5cef84431d2882a9cc3b830af21b4b5929929. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/QZCE61802516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a757ea07d101de48dd5ebfd90e8651ea404543ca75f658e5bf15bcb1a638873. 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/QZK6N1904821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bb8b6ee02a0821dfd9cae9d819ec9103c26162640a4cecdb5e365fc3b2818a5. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZK6N1904820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fcf3c4f167abad8a1578ed646801f391f95daffc8668d34d8147b1a46588c0b. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T00:06:57Z), 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/QZK6N1904830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5cff0c98f3411175c8b0da433176ceabfd7c09c8c3c5956a334fe35a19d22a5. 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/QZK6N1904246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dc1ff991e0525cbb18725fe91ebdf7c043e2170bd5077e37162b014b305c21e. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/QZK6N1905481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0b1fa12e4949463d70eee1e14d86a30d832605f473836600ed7c5cc74485d8d. 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/QZHN61982496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6325a4e3e9bd43415ee32bfde22ec76b16041c7ed661318874c480f52df7efbb. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/QZK6N1905465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f1333fde3eb2d1649db475b1fbdb99cf3e9f52e05ac85bee5ee1afbd91521b9. 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/QZK6N1905473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba95c38475f9c55ade5e13c934e638c18677cec9727e235fae5f254550baf328. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/QZHN61986828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a2f29abc067af9faa59ffcbeaae065a5a6e425fa24589319f4ec20e3b18950e. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T04:17:57Z), 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/QZK6N1904836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7811f5936197166b7544e3e5d503a65c9a1bdca257654c1e4effb0d6e092635. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:47:15Z), 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/QZHN42488493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe46f39961cc6e2fc7d1d973248e3c3865c2a03833a7a95a7bd0b4e4018293b67. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/QZNWZ2271337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36ecd0f500a18f8dbfd64f4188040fa6a29171001f443fb9f1cf9082b2e14e28. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T11:23:59Z), 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/QZTBB2232830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbe5d19251f1cf8c2c22690f8879ee4826938ee5b8a277f52a10dbcb69236433. 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/TCAIL2436651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf57367dafa02b44b539754b9edfb5ee664e687c4431b13bc066a53e05cbf3206. 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/TCAIS2479951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3803cd204ed63385d30eafd1fd349b087750c4d281dd9df75f47050926b5600e. 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/TCAJF2542074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f01adb3eee0cd2e0865cc6e94c08df8b4bdac438745edf05a6ce09107dcbfae. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:37:44Z), 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/TCAJF2542080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ab4bfda376a5550dd200897b7c50cc1618630b76c19305f9b3bab4d2a082fd6. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/TCAJF2542083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82c3812fee511df9179b728166289f8622a217c8efc35417a9265980cf81fa7e. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/TCAJU2542704.