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 0x7c4f24672dddd61fe84c5b1d8a12eb2cabbe69dc52a4336a8f423f956e1702f5. 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/21ce8fdd-5c21-42c3-b212-29babf5d9310.json and https://artists.proofprofile.net/proofs/artist/21ce8fdd-5c21-42c3-b212-29babf5d9310.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 0x9385c468965b4bb69ca9dc4cf18fd85c7e2935077223058c9ba9fd1dd6df186b. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/USASN1402469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4c29448f2581b1066a7915b613c4ad7208e72b833fd6ab9c6108dba72db280b. 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/USASN1303101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bd6edba5a155c7b1e5bbffc20f2f12fa38428b56115cfe3a4b6d2ffa9d1501c. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/USASN1303204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdab95c727f80a9427144bd633165791027a0769c6b7e5f5bda760ab2faec8f3b. 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/USASN1505000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51c169843838d0dfa64788b56a8fa629d003763070f61e2445ec0443eb2f905f. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/USASN1505394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc26b86b17bdf8324551f9fb10f9d14022921839095a1877170bab518699b180. Chain 2 (Bitcoin): anchored in block 957867 (2026-07-13T14:55:20Z), 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/USASN1505236.
Heartbreak in a Hearse (feat. Will Aaron) - Single
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0b825ab788f6d546044365a6a2a3216c6bf8c3f8537da653ce3c6875d7b6df8. 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/TCACI1598355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x306bb3b4361c8574546e2148742f7bd5571c6de0db16b1e5ac13c7962e03844c. 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/TCACL1634699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x673e0cd550e3b17f12f8072757830a60c6b2cc0ac3da5bcc098d5e083633e62b. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/USASN1710080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bae41dcd5471589cc82f1e3fc9b82613c52b45c0e1743d04ccaef21972d928a. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/USASN1810078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e4c0e0c17f1ca9d3a40eec880cdd01d44a0b4ad19537322879ef5acd18a3af0. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T10:46:51Z), 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/USASN2005015.
If I Fall (feat. Brinson Swann & Forgiato Blow)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad9ccc2dc8a23beafc33487777623e86b86c64943fb5a5fa211094dfe754d25f. 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/QZEQU2029073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3112d6619e78114c4a6be2e5a4f97878126f60a1f30db6bf4dc20273ad6a252. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZEQU2040451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9b27775adde18cd68613ac6fc536fa24d5c50253f72ae6e4be6a3009356d8e6. 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/QZEQU2046390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6b2b696320cbf4a56712811aa2fdd60d827e693e5c0b39be5d073b8c56d65d2. 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/QZEQU2046391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb90856ce879d25a52a7fd9af20203c258a444840b33768b52fbbade7145c8153. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZHZ32204909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabcd839fbc9098af3487745ff33981df7b9848aa038c6cd51d972f22c1fe0c2d. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QZNJZ2273469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd847c85b9c535c9385c31ae6a80fc7c0dfd75f2033369ba2df071eced4521972. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZTVM2241878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9464c2f1e15b841e26b6ce1a7868e75bff95f23cecf7fb9e792d0e44c9bf4ba3. 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/QZTVM2241879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabcd839fbc9098af3487745ff33981df7b9848aa038c6cd51d972f22c1fe0c2d. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/QZNJZ2273469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b36b69005b1c1d1453fe54ab251d4d5051ec63d611407a126d2d45bc90dc349. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T09:47:24Z), 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/QZTVM2241882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda7819cbe3594bcb0e3f9322fbcc7e88d499fb22c2d6f538644f80050c433c79. Chain 2 (Bitcoin): anchored in block 957867 (2026-07-13T14:55:20Z), 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/QZTVM2241884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb90856ce879d25a52a7fd9af20203c258a444840b33768b52fbbade7145c8153. 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/QZHZ32204909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x318566d7697b9908437e13afc6ba6f97b1d7bdc50c4e41528545562ae7c3319c. 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/QZNJW2399055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a8b6d104de2a05a903cb34f4f44c76be2307169fce6d59dbf11c9376308cd76. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/QZTPX2393604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c3635091d1ee62a5c7d15a3ee76472b008206ae43331a9bcf7c7d384ec32328. 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/QZ5AB2447030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf02e98a1e3e3781bcd4d617a3576d210c1ada0b58332a440fa49fc2d64c8030a. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USHM91858652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x903c9604888ed957dda24beb13991160d4f828d68ac67bf754dfe80726234edd. 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/TCADZ1850490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05294d27d098f55fb39b038acce686157f9a92713284bf8dff0af10d43992fea. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QMDPP2201590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabdedc76d3628ffb12416cdd1349a214684b37f118a336d2a4978082108e3c86. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/USDHM2021747.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch