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 0x30f5230d3805ce8318c790d69b17d0d5c0808b7187892006386d69c7188b4dc7. 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/0e2df81e-01df-409a-8ca0-ac843026592d.json and https://artists.proofprofile.net/proofs/artist/0e2df81e-01df-409a-8ca0-ac843026592d.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 0x1e9ae188233bbc0d2ab23d84359360884e7b8f1805031503aeb7282c9028285a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USRC10000206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68afac979736a5399f6bf46d0ef21a776e750b19086327ba7585ca5a4565424b. 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/TCAAS1079248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf26f4dea6c7be295d9edcc61055cf1dea204fa3e9333fc2e3e9e1b1cd9cff45f. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TCAAS1079251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb4f5dfca6247263f77e72f770ff4d962850baff2c96dff7fe58c36baed1240e. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TCAAS1079261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0917d4efc4d122cb06d809e1c0ef75c3ff09e73d6ae723c4163e9fcb8306b35. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TCAAS1079268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b2816d5a7779580601a47aa2f7057e764c214ee38a449ed64197f6a690042e1. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TCAAS1079273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a126d0638cd02659bec4c7be62c6df2511128c6229a26a5e303d91869089dda. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TCAAS1079288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x629c0896d6bdde030d408255f65aacf65ac3b03d3cdda92dd61427fc97bc93fe. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/TCAAS1079295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc672ad64063a28e1eaf3fe6d4660bf2457edbb30a20a41480466fc989175950. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TCAAS1079296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29b1d573c05b1f4abd42a0197865547204fb8523d5a0eb153fc40d47b95e307d. 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/TCAAS1079297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac82d41b1daa7b13c6c0f32f25e7fe3eafdeafed0b2ef31a9ce92216bbd6e60e. 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/TCAAS1079298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbf6f6d4d8d0309a60bdff5ffed41fc91fced3df0ce7b2f379347f4084c27f6b. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/TCAAS1079301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf4aabf1ccc40fda964c662067ea0d565b19d2c532828e5c602ee5191adb4432. 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/TCAAS1079302.
I Want You To Want Me - Live (Bonus Track)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d00e7bfae6f39cad98bbb184546ca5f9ccb0b39ef5c3a995c7453a0f4ac983c. 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/TCAAS1079305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12b903a9f06d1cb2e2b39bc2de247ee1285368b20c211633dd12db61a22869fc. 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/TCAAS1079316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a6203a3156be396086cc9e5060f4c69f4cc87a283c18302b48ad62fcecda360. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/TCAAS1079313.
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 0x90210f9b7557637bee1f558a3f0e1acb5dbaf56b5671243544d9f899d1ae1c0a. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/USRC10200630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x653b193a153aad89dad0cf6dba144aeddb2fceaf37d01ff6c9d6f71beb9b550f. 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/USRC10200631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x198be9a3e65b944c9aedd4b47f29b991582371ad6c746460efd62dcaf7491f6a. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/USRC10200623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x791206e56b9cca8bd783ed572eb8734b30b006d2f9a0c7a173252c8973cb5990. 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/USRC10200618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34414bc1ad548abf2e0150eeed58fd0455e62a91c8ab1cf37929be0669c14db8. 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/USRC10200622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76763da02d1b4f41cf205c4bf82bf47c0796e143746055209786f78ae2db8fac. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/USRC10200620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3f17c030b984a39282ea0095d1fcde1cdb2043a4006918a0d22dd17dd347f81. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/USRC10200632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x680e70d429e4b4ce417e82e13786b92da3fffdb6111f464d17c1e23693fb5cf1. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/USRC10200624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9706dd195639142afd7d2250b86ff2f1823670b1e629918df7022baa9826c69. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/USRC10200617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69597e413f0cfc7b800f1de771b92221eea99ae970a496f6f12fb60f192c9bdd. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/USRC10000248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3567d68693a5eb05b3680739fa292d2ba4cd637b2fa2980f33ddcfa394c4e52c. 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/USRC10000254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b9efad6080bafc454a999dce3fe5f2765d4d49d8bfd3c905c772908eb432d0e. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/USRC10000246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34d8e252b3cc870492aebcab9db128d3b89c206abb4de68477a9cc4e8f2d2a5a. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/USRC10000247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58576ccd9e5153b1916a9b9fca438c5c0c55ca8319ac60cd17996289dd43bf7e. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/USRC10000253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a7b8d456397e5fd253aba25ba88a93aa32d8fbeecbcae290cd92bd2fdab228b. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/USRC10000252.