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 0xc930b907f35cba3c3611c331cc7bb8497ce1945af9ef3958aa658351d79ad549. Chain 2 (Bitcoin): anchored in block 953842 (2026-06-15T22:22:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f6d978a2-af23-4fec-9d78-333d253b9a20.json and https://artists.proofprofile.net/proofs/artist/f6d978a2-af23-4fec-9d78-333d253b9a20.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 0x6146b7c2dfea53df41d0c8ef86fe458a6758649990a3a8f589cfae7499b1be99. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/USJ3V1151170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56e43e195bd51f345d4786a7e8f18333498413abc523f20688ddfb18e592ab6f. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/USJ3V1242116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc244e58db0e6eba4ba1dbd24c842f7c7d712cbc8018c92a9114bb9cc8afb897. 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/USJ3V1244045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11f4ca00e7aa2aeefc3f02a05de0723bba0235e44bb9b9a440ab454b34319e72. 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/USJ3V1304875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x883b203c5556db0f42d5d5e07a81b48376829e4773877ba5d0c0520a521ac659. 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/USJ3V1326553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5916a53e3041dc82da5e0f2a5c1b8d25eb20ce5561176a5d2919612e05e6f1f3. Chain 2 (Bitcoin): anchored in block 958722 (2026-07-19T11:03:50Z), 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/USJ3V1330054.
So Fast (Fast and Furious 7 Movie Theme Song)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22742f71b622cbc3a56ec41b0f359486bcff19910d0338d43eb129f8e67ecb70. 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/USJ3V1348070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x332ea49acd3d4a5963dac78f40e05eb0313a10db2b631a3751ffb732381e52f4. Chain 2 (Bitcoin): anchored in block 959091 (2026-07-22T05:28:49Z), 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/USJ3V1349637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41446fbb5c80bc0e614066b73e1b2f1ef89e6850c4210483c550beab8d554687. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/USJ3V1374536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d85b3aae376c947af9336f47e0b200da89b4826eb0a707e91d87be026e624ce. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-22T00:54:23Z), 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/USJ3V1378748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe04220caf6444a37978244a730764da8da4f12b6d18b917a698273ae05d1a47. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USJ3V1395289.
Its a Suicide (Theme from "Suicide Squad")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83876190a04a3df5b44653e32ea52a76f1979bffa2cd3346ab09667f44f63207. 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/USJ3V1415983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dcff0366c65c0a7ab2bf17aac6ae00eedbe3ec7250cb6a258263507fe603345. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USJ3V1452608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9aa3ffba5cc41bf217289270f17c34f1c3ed423a4100806dc4dcb7132337bd5. Chain 2 (Bitcoin): anchored in block 959088 (2026-07-22T04:17:15Z), 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/USJ3V1463440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4bb4277143e0dcec65f44b2107289e7411b2f0887ecec1620c485a4297dcbec. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:48:36Z), 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/USJ3V1471210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8af4b08652ad22bfa4f90e6b890f3fcff7e10162b2717a9a1bab6fdd096e590a. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/USJ3V1481724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86fda96309d3ed37d95fbfb57442ca243bbb9acd02d1cea364d68953cab96f58. 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/USJ3V1484498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89c806100ac20645cd8083b289827e2cb5606abbb79051674419fae606c86f53. 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/QMEZE1927353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbacbf1ff1ace1b989d140d5ce73064010c85dea165ed6948ccc3baa11a066d8. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-21T08:50:43Z), 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/USJ3V1896950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6286b8b055e26381a45f72c51cd8b2b9699cde3c5fac398e19129b612d8c69e1. 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/USJ3V2009774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42464b51c9571add018a7e28d69584e2135f362cf58f5b335796d52e8ed661ee. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/USJ3V2015320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd646bb1ba63c856366ae46441d37d7a1027796c06f3d6dbbd68845d0351c10d. Chain 2 (Bitcoin): anchored in block 958617 (2026-07-18T22:07:13Z), 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/USJ3V2024637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b305a0045d2a3b3146be2bc293c383228c2eb2901b0a96ba7057731b59ec3c0. Chain 2 (Bitcoin): anchored in block 959071 (2026-07-22T00:59:33Z), 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/USJ3V2035765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80d97b5efd2b3bb0561b23ca5e2e83d218c63473c4810532df162229ee856cd8. 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/USJ3V2064304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90e9c48a57e5d4f15effebe909b35880d51f026b06425eb1c284e017cff1e8f8. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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/USJ3V2072217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cc0aad02c5d02d61e9534ff47247c75434bee9670d019ec00d202202dfb1d46. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/USJ3V2116626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87ad226b4d65eb6788f3e00e053485f7633c0c9bfcefebf558a2be9d4e1386eb. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/USJ3V2103209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50b587008e1472136d74f587b77679947d379b0b231c4e79c132fc6fe7720781. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/USJ3V2120020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f0d7db766a14f89a5593ceb065d38d1d88daaedf8504aea83793701bc2d2867. 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/QZ8252230657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd86d6921fd02e94093910e3a85d9e18f6b2d3e17290310e62ba2690913e46f61. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZX882306109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x899f423ab81fd450a450915e884e79d73e3e3661e8f3967ca396c55bcb5c7c3c. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/USJ3V2349292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa451c35d2ed34e80dc62027be0dc740bdba8186f7e5f7dbfee1540b5af1b18b8. 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/USJ3V2398872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a93af4691ea17b0c96b3aa0d24c25354df3eb6431293422b9b238fbe266c985. 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/USJ3V2412189.