1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x15f51b5b2aea400d6a88edc81477b5c28a24c98f6ae000985e0b9f7dfc7d0ccd. 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/bebc1ac2-760d-4059-a922-80c4a74ab10d.json and https://artists.proofprofile.net/proofs/artist/bebc1ac2-760d-4059-a922-80c4a74ab10d.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 → block OTSBitcoinBlock must exist at that height 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 0xe5a65ec8f501aca864841014a793388ff7f2cfbe6ca05b3871c0da28730c56b2. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/DEPI82218438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9bc48886483f7c5a860af1f292f357b3cf0ca1dfdefc99fc7d2538c83e2a251. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/DEPI82218415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6ee0af81ce69e2878036b49d5a904ef416c7f1d488bcae36d3c6e597e90fbbe. 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/DEPI82218445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e1af1dc65b595b977e6b203fe5cc660e867b270ab9e755b1be4e5638b48b309. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/DEPI82218440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2fde0209a8590fa62e6e4073c21f2c4db517c9998064fd8a614d8b5e3c811f5. 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/DEPI82218463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74d6fafafd4c6d866b0df478103a28e126874f22c13c24f7cfe2758697294317. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T10:56:05Z), 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/DEPI82218391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd64eccb1de898d3cfa5b42fd7366af4c2ce2914dd42e855b745296035f752a67. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/DEPI82218466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5fb60ecbc4504e3f8e84217b231f510aa5d79595b287245e7b86fef98df7b11. 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/DEPI82218393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x411f145af1177dd66f8756881da1498a87c1aa652ba04d08b85ed3eac5f17823. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T18:04:20Z), 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/DEPI82218446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x139abd59cc6a17984c4a1a7b0905b67103d8f4b6eb9a7512c495ec744420a9a8. 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/DEPI82218451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x621af772593f055d5b9622a1ee55fff9c75ca21f3c7e9be7c2503849b762c8f4. 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/DEPI82218458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfa951736f77ecfff189d00ce1df9a1fb7872892cf8da0bdf6c5edac1d10d34b. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/DEPI82218417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x633f80ac923f0383edfe12b47b8162d366726cc985b4fea00f09db19ef7be8d1. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/DEPI82221388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60c83378fdc65944335bff8565a1a838b9c9c9c62ae7cd2a36d9ace21dd449e4. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/DEPI82218414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4d05977927e48c1dd981aea25e92fa5b6cef595747c54b1e0a672dc13369e75. 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/DEPI82220901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe1ee4b006c84ca05988efbd11cbff09c1054c47b1973d5cfac53ee1cffb30e4. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/DEPI82302013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x513d1f37ea295d0dc746fbd4a9ae7730081355a3f3b669bfa811fc931bbe14c0. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/DEPI82311368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5be70b2852b5e1976d74e369d05041eefc1f6a45ecfae1bc37362d6c48a7cf53. 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/DEPI82312665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91174601f4e79278a2db00a3e6c37138b9ad2ded785cc70995712e796f354e3e. 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/DEPI82400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f345f40f08ba4b16c864d9fe68d0e9c5f26a76bd7efb3c6e95cfcc6ddc09587. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/DEPI82409072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a67b3319840c51136400a51d334622d3b60ec16d6e20b249423fc71a22584a5. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/DEPI82437556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73267dc87d4ef9033b04baba6dadcfb33dfa92932b1c5f62519ae308fe88f270. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/DEPI82452651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0ffc5c1dbb9b74bdc36061bf9ad45e46601785897a5d230d2d7c7a681ef4976. 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/DEPI82458802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b1d47f439964e333ac3774d577bac17e4e7909d33f0a748c225091ed3be01b0. 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/DEPI82503542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x892ce4a3f59099249f42df9eae2c3bab9d288ee9ad3d8a0b3a64cdafb0938585. 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/CHF032515473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d9c320b57a5bf7bab1d99ad52a56d5598c9baab796e6c136b2b6333460d4d6e. 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/CHF032515606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa505df9bafb692e3a8d09438a6b0b7a5d25805bcc2c0a15c09d9ae4ca8029e91. 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/CHF032515581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x041e5340983f7d9dc68b736def06a28486ba274d8806ab683fa16ba21667dcf1. 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/GBSMU8515708.