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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b24d87fcb4f68a50d26c183220ed4f7acbed22689972c1a0f4bf09a789f9ae7. Chain 2 (Bitcoin): anchored in block 953803 (2026-06-15T15:41:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e632b84d-dea0-460c-b19f-af15d2deccd3.json and https://artists.proofprofile.net/proofs/artist/e632b84d-dea0-460c-b19f-af15d2deccd3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Horror Of It All Vol: Three (album 1)
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x438560d42c5709af1280d7f27a8dba97460932ce40f162b17cb32bf1e091ff90. Chain 2 (Bitcoin): anchored in block 960429 (2026-07-31T16:07:24Z), 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/USA561060740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x446371e9431f5e03bb1cd045d57a21dc10b07fb582b3da5da42b71e8ee8fdb87. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/USA561060743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b1710f91c7cc21f40e08a5acc2d532b5ee30a9639e18612953331341db0333a. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T18:47:29Z), 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/USA561060748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3032d48ff25602742a1e9fd1f3515a60156cadd741a796847c22539c4995382. 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/DEAR40601116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf0780e83f81ce395ce62e18497e180d45e65bb081467c0e5e64eb8b956c01ba. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEAR40601117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x646c2679f00d33751fcded0c81927d75fc1141784e4788752ef3f78a2d69d695. 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/DEAR40601118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x776914638552c63fb13221dc0d63db2fd40f1930a11783c3c0a8e3aa75ce67cb. 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/DEAR40601119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08c7c871d4d643f37c09cf3d71fdaf4073545a508dbf0ac426b4f8985f5162cf. 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/DEAR40601120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad2c15153cde49a6544e9edbfaf86c7ab4687bbb496694506396f12e76cb2858. 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/DEAR40601121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce3fa1d6f943b7cbe04fa7ee8522af62984c7a8ab0574b6e014ce45d91adb4a6. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/DEAR40601122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc916ca9f1c6cce7c053c048252f8bc666de5281e274200df2e64cc45c4996b05. 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/DEAR40601123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62f1f0813b88821ab45d77044ea119c49d61a911e89e87f51bb377b7733037e3. 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/DEAR40601124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x098dec9693bcedc3aa771865420937f6f4a923478ecaa3cc50dab185e4d1fc17. 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/DEAR40601125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48399551d0865671a09f106a601775636238a47b6ad6e8c4b4eaffa4d9706f2f. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEAR40601126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x619aad1b62200159c6acee3a31c5e6c7cd9406d6e6580c3f3a4de67ffac71983. 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/DEAR40601127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef0f03db31895d6d7cf49f7dd1d612e9157cfcb4e18748d7c2736fd88aeab35f. 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/DEAR40601128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64014b5883ec16b452aeb6b014bd3cc362bc8da196d4ca8fedec04329fa19b6d. Chain 2 (Bitcoin): anchored in block 959146 (2026-07-22T15:41:47Z), 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/DEAR40601129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54d8e8753f1304776c441d356acaa305da47a1df457ee4cb71923caf3df5efb8. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DEG100820002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ef64eb7cd3f90b846b8da9e4c72a788722ac71f6bceb567295384a3acaf6dce. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEAR40600940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ee089ec04b8a65a05d3417cde3bee8d8d91457e0ec4246b2d93566ea859c58b. 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/DEAR40601237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37b71a32efe41cae31a3690bd8c77a6022cebb61fec35c4e70dd55df7e86166b. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/DEG100940002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59d7db22746aa1112c99c4f1108193aa7cdccc4bd9df719dfa9f8dc71800a79b. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/DEAR40601239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x732acd0fd49a04e98095c1b61f6dd3e7e50d95c019fc14cf284448d9926c88fe. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DEAR40601243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a9d4376e218b500db05e4c5ae71d98bf6e78fc070748b7880d6dfab0cd6f9b6. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DEG100700005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3776fe1b3ce273a940a94424a9a48becaa81b3fd1d954f2da7145f7f8d68733. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DEG100900007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bc23136d6ac0f2b662f3d0ea27f759154b7ee74171653d94280b813ada1968c. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/DEAR40601242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aa90f38ab27d1d9b92a8745926ef7f7abb59e673d68e7ecdeac532273571378. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DEAR40601240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3df255286f352f68aaea8e2d201769e73345852e66bd132381c08746e2595bb2. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/DEAR40600943.
25 Years - The Very Best of Wolverine Records
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc39585bb6d1cf302c3460dcc7135693dd9eafb26d83327e4e4aa84f068328366. 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/DEG101703001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a6faea0f2d9bfd1c503c73a09f00bb5d5c8924a56eea0b66e4fdd059620d0f1. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/DEG101614001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38542a2db8eace9419fa0ef6818ddfb4f3a8e27af794230e10574630a23bd25a. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/DEG101613004.