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 0xd02833c5f00beba0ea346e600d885fc9fff7113378621feef66c7fce19a9b4e8. 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/690ce146-9c71-4c2e-b5df-460bf2a196fa.json and https://artists.proofprofile.net/proofs/artist/690ce146-9c71-4c2e-b5df-460bf2a196fa.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 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 0x6be3cac991eddb83a7e149d23d515553205a3fceb82f0f88cad2651615b2e593. 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/TCACR1643391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71bf1aa9a18989887f4e4fa5814914f9efc35f584ac5932eddd918ca5eff8bf6. 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/TCACR1643393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb51784203ece32cb2cdae6998857dd4f106c53a7691206e7abcb18e4694a4da6. 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/TCACR1643394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45c705623676b42e5d55201e7922f96ed6da726a04620c24f62795de630ab785. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/TCACR1643395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6097fca395fa7931f1c6627ab0f500b5f3a82457c18f39a1e9483590e7fbb11b. 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/TCACR1643465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca67fedb9634b2696c3a96f12e1f1ae3acc706463c6ba3517a48ec41f2e4e3aa. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/TCADD1760761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9beed579efd1156c6fd5f8381edd532d6d28779c76d3f7284a3c652f093ad9f7. Chain 2 (Bitcoin): anchored in block 958506 (2026-07-18T06:14:51Z), 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/TCADD1760543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55ff67f39a2fd8845c7172be3f48710c5e07f12c906c0b8d32aaa18f1b830126. 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/TCADD1761183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96ff7aba8bdd3911b98d45a55961c0aadc2b6bdbcec1a1a09572924648e426e6. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/TCADD1760173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e70949dcbd3dd9291c28d0c63f52b7bfc76ae3b7d7b65dd7da84bdb94c96c80. 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/TCAEE1935404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x431532a9d0899664892ac9bda816c53dfc01d65054b1a2d3f6c926ce30cea9c3. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/TCAEE1935414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b7f6ae5a3a577b1298a133b976f50aba867e127543135b00252904181a5668a. 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/TCAEK1961993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e6217e135d3aef9e212680b98bc4fdb0bc0be50eed2c7a98648491514c1e07e. 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/TCAER2087898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b34aad5bbd1c9d2d86ad993c8a46dce86e61f822878b99b25ee92c426b42159. 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/TCAER2087914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe428d8ff1c3868f09ce94198a5981669440058efa113192fb3c1550e51faa4bb. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/TCAER2088069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7dad2700aec5f0803e670504e9a7f5d5fbf5e5e09edb5b271198111c55095dd. 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/TCAEU2026319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c66739b0207c3932f18126af61908a36728f19d5224ce9f7ea42707fde8049d. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/TCAFG2019150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7804769e4d75215bacdb90a3cb2b9849628c7b18271d995ee2a93d066634bfdf. Chain 2 (Bitcoin): anchored in block 958506 (2026-07-18T06:14:51Z), 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/TCAFG2019184.
Live Your Life Again (Live at Airplay Studios)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbb30bfb67522f337fe2299eaa05a057f9534aa7f022f576ab9b7ac966eb826d. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/TCAFG2019206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e20fc150a3bfd4af36bc67f4ae91d505945a8edf7c14f063361f66f87c33c69. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/TCAFG2019212.
While My Guitar Gently Weeps (The Beatles Acoustic Cover)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86a8110b674e09cae4cfb49cfd2c0e930fd81ce85d76e08a9cf2aaf43c965c21. 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/TCAFG2019231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d468fd894efb7b06d4237e7c8bbfcdc4060ba1e56e9e506fc8d8208bb12917a. 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/TCAGY2390494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb87e3d20fb03138c78957ecc288416737e24d512892147de28aa6694e465335b. Chain 2 (Bitcoin): anchored in block 958535 (2026-07-18T09:42:49Z), 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/TCAGY2390555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b74597285d66c21fef60d8552bb2d0be10c0535c0524a5b307db4e7f7d347e8. 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/TCAGY2390622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e6013373539b0c0f3cd66d460ca3b5ee53213128a70bed60b9337887f1f7ca4. 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/TCAGY2390651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc137c25a0ceb40b5fabee3c91c49b630ff59af54552e8c75e8283a2c3ae6e735. 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/TCAGY2390710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf087ffe040ab1695cbb7ed6b4cf26b1253c34f42ace635a74715526507a40449. 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/TCAGY2390744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ecac028fa245d40d8c79943832692019714d25230317c88a59bb9a128244795. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/TCAGY2390790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05cc474f0da2ecccba554306e47fb30a0d710acaaa3698cf8e2f9f0b30ee370c. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/TCAGY2390825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96c477a3e6dd0df6391eb28d6a441668b95dea7f94740cad90f2f43734bb42bf. Chain 2 (Bitcoin): anchored in block 958510 (2026-07-18T06:38:22Z), 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/TCAGY2390894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaf0585e6bd0bf274f8be63c1d20c014e282d1ecab0ea65897770cc5d9ffcae2. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/TCAGY2390928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30812c6ea4f052848e5ecab1b1ccb3db229cbf48c25e84187b06b73922cfa145. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/TCAGY2390954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06d540b676fb1e3df831fdb6b32784e9229856190069f01e2302be2ca9ee60b1. Chain 2 (Bitcoin): anchored in block 958514 (2026-07-18T06:54:37Z), 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/TCAGY2391245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fa99b37206a5c49047f097c45296ee52278f3a4d6dcd94d8b5885cd03cab4d3. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/TCAGY2393488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7e8df357c16da2a2865ed1376646ddbfcc0c73bb2616fe63a58af26685cfa5d. 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/TCAGY2394024.