Peter Pan Speedrock (PPS or PPSR in short) is a Dutch rock band from Eindhoven, Netherlands. Background The band was founded in 1995 by guitarist Peter van Elderen. He was joined by drummer Bart Nede
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 0xb27e480dc3718268ce1500b40226caefe60691d50dcd8e076c9342d23d037719. 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/cae147a4-7abb-4611-ba98-045e98e29748.json and https://artists.proofprofile.net/proofs/artist/cae147a4-7abb-4611-ba98-045e98e29748.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 0x6b95501356884b4288e5572301114fb78847bc5df83c44511c6aeafa56c98bb7. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/NLD440000901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ccb4f3916637158b6f6bb72394b0e6dd6a9c0c2932076117144518bced723db. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-22T00:09:47Z), 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/NLD440000902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14fd7b159055150be732fc510e74e26c1a91c788a26f410bf4567d3aeb3ac6ed. 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/NLD440000903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb51ae58dcfb5eab6daaa3079eb432056aa4a60f22b5cb4157e61b9696208acc4. Chain 2 (Bitcoin): anchored in block 957587 (2026-07-11T16:48:26Z), 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/NLD440000904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb45c5f158fb1d84729f3627d25f69b207c99b5ee962fa7cc4ef73ac0b878fd0. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/NLD440101803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17f60b8b4f9318873eec85a368d07a167e0870aad98281ce23208454b5401f5f. 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/NLD440101804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd355d3bf6a4c988afa802417980bf57335af2a7da8c0d17af4846a37893881b1. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/NLD440101805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe66e9adf270f241f239ef68711580817fe6d1cc10b46219c11f4a2c1bc752d2d. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T06:41:02Z), 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/NLD440101806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb2a8b1387f0e136446ec7e3a959efe9b8bb68826eacc8f368e8a34e9915b01c. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:38:28Z), 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/NLD440101811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1199dddea34f9ac8217e511891ae9bd5509567088d6cf6835bf41563a04c36f. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T21:15:53Z), 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/NLD440202305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90b7efd896a9834820e1692501b98e9a577f74fc33733ed0a9f77d2761b711dd. Chain 2 (Bitcoin): anchored in block 958682 (2026-07-19T06:17:12Z), 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/NLD440302601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cec900a4e9116b1d2e8826b885b27297583aa7842446b7249a0f41fb4fc69a2. 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/NLD440302605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0661da5c4c070fe3dcc30632ceca899a4dcbac33fe6240dfa18d58752fa6b688. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T15:00:50Z), 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/NLD440302606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62d61525d697c9e8b804a6832a50caf523c1af398dfb2bf9a4315d5f8641987a. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T17:58:04Z), 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/NLD440302610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x114131c18c01b4316b53fa41da81560569e3d8c9e6d187c397b3802987db560b. Chain 2 (Bitcoin): anchored in block 958204 (2026-07-16T00:29:18Z), 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/NLD441006601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x799c2ba0e90b36da9f6c0957cb56ac34b514e830fe330185ed3fa6187f26ba85. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T20:21:11Z), 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/NLD441006606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1ea16b62232fdbf4083b10ab2d149cae5fa1f6826f56df8d5b22d4b90ebd528. 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/NLD441108301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae7961be90b54c816e40b389ce80bb0c48fb80030a46e60ed37786f084d6b606. 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/NLD441108333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe83d8fa26a6bc82e25160046c4e2e2e43d1068514e243f9eefcefd9391a4701. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/NLD441108302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf546cee9bc4d8e9d88201025b0fc2e0c2da5fb2a7b3f374761244b29e5fa93d. 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/NLD441108337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42cc17ba5a9ebcc40951b774bf334e670286a603495fe723d0a753f19785b0e5. 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/NLD441108307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe778e39b762be3beae6b74dcf6cb563e52726df2ec2ccb483bc1f4eb22ec1e28. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/NLD441108339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd528cce84d3e923325185cee2a66b218c0de98ec4b0f53be13d564f15639bc8a. 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/NLD441108308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc47d50d19e6fb51b2a4527e6b50383bed5fe7c40e18652a7d564c1bc085e6720. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/NLD441108309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe26c0155b49a07c2331cf06cd595f9c41342cd6379c9c8bd7a54fcbddbd89d6f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/NLD441108341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae58f93db8e05055a0c1f67a38fe5c9fedbd592bea3adcf077dcff8bc45e9fdc. 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/NLD441108312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee0dff995f7aece04f8e475f16e10218b0845c1ef8f0a26e3428b669f5e52deb. 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/NLD441108344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b40b00cc791c6e697626983abc46e286b149c75804a0bd0ced819df132ef935. 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/NLD441108315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2a62d3cdafff255ae37eb99329177defea786ca021a9c8123f4c4b66a4f5adc. 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/NLD441108346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a5378186741bfbfc169ed1585402f1d16b966b5f2bb87cc028406cc77debdf3. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/NLD441108347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0bc440379ea449d70673055572ec439b5f6f25b4a99f34e252c771867bf5500. 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/NLD441108316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba5a5da747dad0d3e7cb6ab1881c9b93e8851478c0a64b773141693d782f79df. 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/NLD441108348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb30e431d49fa18132d4b86813c43cc3695afe88d27ce5d524613a5d26a555f6. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/NLD441108318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7a19c41acc73279613cee4846c67a7936d7774e7206c1726cd29d75e10750ba. 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/NLD441108349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x886bc0d42ccdd7832b51f8c751a6bfc5a4b065143d9057dd2085c571834f4d8d. 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/NLD441108351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cf2ea61c9c86f2832a2d463138cc1f96e88b56c5bf793d652fb67796a703151. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/NLD441108321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x503a6e328724d7a9288c0bee6e27baed6a185f26c087660e44db03855bce0f43. 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/NLD441108322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8db508ed474b043ab6a5704e5ab736b6f75209c7ec29d287d54dfe419999277f. 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/NLD441108325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33337797cfca2f8c5d1f0a0b493271b7d2a1fa04fa2bcfb21f9bb3f700c478c1. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/NLD441108330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5d3b5078d6764c5524d08a710c4ca8f59c6639a4d5d7404fa225121c0dd3480. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/NLD231300443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68b3b9cbcea589379e3b2882635138591917dca5288d51f175e7df720ca1d8f9. 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/NLD441413301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefea3f68debab93a90ad0035ca5e58fecb8a68ba677e13fb1a7c30282084927a. Chain 2 (Bitcoin): anchored in block 959002 (2026-07-21T11:47:29Z), 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/NLD441413303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4eb6305b722db45e9d9dd684df4d0dd49082a06d82024c6a406df0835fbcc42. 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/NLD440910201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe767bcee88f0efb93f2d0e27316b7852b67818db75a89a51f1aa099ac56c4dd6. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/USQY51013427.
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 0xa83bd5cf7eeaf536cfb28d441113c0d17f41922bf3ef026bf0582f5ba861ce01. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/USQY51013429.
An International Underground Tribute to the Man in Black: Johnny Cash
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92db749d0cdec57f2146196f00ac522a4e3deb9a2aea6a631adb4cfa2940c28a. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/CH6540856989.