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 0x63ab0d63b451a7a4e2085233eea8b7a84f95ddc551e4f95738aae105afeb97b9. 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/6ffdb0a6-5830-4429-bc0f-4d9bae97a978.json and https://artists.proofprofile.net/proofs/artist/6ffdb0a6-5830-4429-bc0f-4d9bae97a978.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 0xcb8c6bec2b44583e6a851009c9a1ad88ec3d7ed9f0e774279645996d249669a7. 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/GBARL1000675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20caaaa936a7b3b02e2aa86aac09b59f1ceb01a1f340776673b7bd22d8d9cccd. 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/GBARL1000672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54405bdc46869c6fea7c1250c5b52bbbeaa03e3ef2648cfc35b5d33788cca747. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/GBARL1000651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x824a339a3658deaa3d2a3925d959896fbacd0a8f80c5c85c5cd86a4caf0761ef. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/GBARL1000656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91d9fc952ef1011756970bce5a2c3ffee28eb8df71de2dd761ab471400f0c3b7. 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/GBARL1000657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7493f0a94f02238ace4e0827e38595f1c64533556e3a226db580cccf386445ed. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:19:30Z), 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/GBARL1000663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac0aa6c6a84e085bbdce17f2ee8dba6bcc2ee4ebea0e8f731d864cfa6df04833. 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/GBARL1701347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed3dc97bc6e543035dfb01a07a46b6a55e4f72b932ff7d874523d6442719445e. 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/GBARL1701351.
The 59th Street Bridge Song (Feelin' Groovy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99b07a8b7be2b309e9b21de50ec6177db9f250f4efc9e11e712830c4ccda8055. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/GBARL1701354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24558ec89f99a7f6f3308776c3613289ca83d5ddad8d022fd6f05d38fd34c120. 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/GBARL2101346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4699573cbe6fd44241803acd849ff3a4a9815a4abbfcfbdf990325587d540a6b. Chain 2 (Bitcoin): anchored in block 957550 (2026-07-11T09:54:43Z), 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/GBARL2101348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca1f3ee7781164f3226b6da30be1ca79cb6e6fc389e54ae3cc6e8908fe184135. 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/GBARL2101351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d71056e7a97c0f250466abc56f826e4107b9048ce9f672699fca5434ecf7d84. 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/GBARL2101359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf58e1139fa928f5ac9a90e4b62cb92a6f800941efc9de370dcc631a7bdf3252. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QM6N22339208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb218053facbabb1233ced92ffec152b303942ea31525b10790d03de3a636774c. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/QM6N22343346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff431eb271782030b6c44128478d40df9d715a2dd59cf6f192d02f1011636c87. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), 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/QM6N22339212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0e93250736be50e747c8e39c508cd7be736cc40f0b83ee3d0e73ceb0e8a4cd7. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:43:18Z), 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/QM6N22339213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dd202a476ab6b6340c4ab3602651334f8c27828b26cf05e821b47aef1815fc5. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/QM6MZ2441180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56ac017fbafdf348dba76efaefc568bb9d1f4dcffb5b1707df31328d6d7cfb4d. Chain 2 (Bitcoin): anchored in block 957551 (2026-07-11T10:03:47Z), 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/QM6P42416201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x856a6ea1946727746d2d1595a6183d19e09d987443d521b08f89185224d1d125. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T07:38:20Z), 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/GBARL0401019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4705eae195bcd485cf8f0599cadf1a812f7bdf7bda2a7c9a1e7f55b5fff26b8. Chain 2 (Bitcoin): anchored in block 957546 (2026-07-11T09:35:53Z), 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/GBARL2101353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32ae1350df52826972dba5066751875212f3fd12d47eaa4d4448b65b6b5493da. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/GBARL2101354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x822ef518a5f9b56ebb607adc1755cebbfa40f36d83ad70e979a38cfd4476a80b. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/GBARL2101352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28ce9a4a54a478bc60c42d095a87f2416afc6790051e51fc081186c227bde07b. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:28:01Z), 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/QMDA72422766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86cb6dd4372b7758ad386889919fbbf0cbe1b18253fa2cb701abbaf487c5823b. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QMFME2407753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c09f3c04e446ceed695f1c186468304b77837f97a3c747f74152cb9ab6b99d7. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QMFME2407754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdc280226989b6625da3dcf807459f56f254e3ee2794a9fc3ab2e3ea7c4b6ef0. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QMFME2407755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe497306a64fc492a9085962b762e7506e0ce2522319edb1e382ea7b9b8ee61e4. Chain 2 (Bitcoin): anchored in block 958654 (2026-07-19T03:55:30Z), 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/QMFME2407756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2962c7a09f1dcbd3f1acbd80e8861d30875113e07b6119613e0a0423225fa43f. 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/QMFME2407757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfba10386cf89067fdf497a2ae4e5cc306297d87226197791b80121270d282ce. 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/QMFME2407758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4071249325cedba54111dff450927f6bf99fe7bcb2776e70a27c029b27f550db. Chain 2 (Bitcoin): anchored in block 958658 (2026-07-19T04:09:09Z), 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/QMFME2407759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb145ea0b24d1eb7a4fa7087f160d9e2f51d5fd8de865ecd9a4bee3503347b65. 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/QMFME2407762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x274495995acf92f8d97a7ad4e43067fb751ee828e9544e564be7a90200315664. 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/QMFME2407763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08b7a4ab786a3d8cf0221d278caddd3d6967057676bbf6939fe7e654c9f8e399. Chain 2 (Bitcoin): anchored in block 958873 (2026-07-20T11:48:10Z), 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/QMFME2407764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5a6bcbf32017c080f414549d64e91dcf7cf1d4b149991f0f8be56ff1e689885. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T17:36:33Z), 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/QMFME2407765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1628c79c43513db4f0e5ca8b0d99e55fa9519b21a3d2bc3abd7d1d61d215626. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/QMFME2407766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5697f645e21b3d5b320a159366db65c0e5687b7fa3cb39995243a0e51c0bc432. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/QMFME2407768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cd3d8e5a670e70cd4b4010dfcbbe7b0f5d58b499d86c95fa85341d5d9864aa0. 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/QM4TX2526418.