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 0x192a2c9403d1e649f8c210fe7e74e6c28bc1e0b7cbc33ebeb19927a0cd6c7455. 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/24d9b140-097b-4f94-8f53-3b8c8cbc35c1.json and https://artists.proofprofile.net/proofs/artist/24d9b140-097b-4f94-8f53-3b8c8cbc35c1.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 0x8de3ce6ca62584b7720e62202eafb8f825684f3d4e22b1c6bf976570de848dd3. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/TCABW1445364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52deee40405fd4cddd04998b8dcd934e6bffac37cf74780357a0721143418882. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/TCABW1445368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39c8ef5194a092fd24389e31d6efdccf1cc49d9dc7146f392c301c9ede2fe01e. 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/TCABW1445132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7fa7d1fdff816470a01d2e09baa949df2b5be65a3fc500af960ad86f662d598. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/TCABW1445137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4223be0f9f2737f24df9aff2b868acc27d0826dd891266f8085887b4c8864583. 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/TCABW1445139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9db6bef2e5657887a83b13ba6158f04e4fac7433db0704c1b75514c82c42679. 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/TCABY1498125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12e344a51959728207fdb14f0f0add8ff62eb75479b1b74eabde3072cf8c6622. 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/TCABY1498131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73df1f158912a5950378982e99a5c95ee2bb74515b8b2ede3abc85f2c5891615. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/TCABY1498132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52584e108ba23ab52aa574290f82ea61115810c8816397a34ce8f7f85c8066fb. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/TCABY1498137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbbc3efd1919bd3847649b7d4e58134fb26ec16d95a787a5f000202a30a99c8e. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/TCABZ1400083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23b6de5d15bd2f3c635cf23c96d289cbcbd8f2d70b3d2762f4d62d55479e45aa. 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/TCACF1529829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9adc32e7afd675ab1d6f07ab91adf168da315b37b86c073160987203d38c2fd0. 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/TCACF1529830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b2cbfd3ab68588ff73c58b35c44c625876c58bc412b2587a52187fba663156d. 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/TCACF1529832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf29dbe296fa3ef55c8e0d7052b0727930c87d9bf7f52518e996f2ce5158c83ce. 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/TCACF1529833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x030c38b42fa667e453925be610bcc85dccec7b4e1312ec5f15c888ca0a83ba4a. 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/TCACF1529835.
Live At Roadburn (Live At Roadburn 2011)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7ba7db736ebaf6d22291b4878ae2da2a3dabcff31260c97a48a036007b082d3. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:12:53Z), 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/USY252209178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03f050da1eaa59aaed2239bcff88ea9787c463d322e10dd12b9e032cee04f5a7. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:54:59Z), 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/USY252209179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa54a460ec2945c98fb5d0c160dcd0f3c0a9e29e48b972287be3b93921037a6b5. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T18:10:49Z), 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/USY252209180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaf6281c56c1609b54e42c28f399b55d7e6786322bd371f29a3745b41c228a84. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USY252209181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac58425bf2b23e77907c8a85551683bfd98cf55f8a38b2ad7078fd4b34e8c5c1. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/USY252209183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39ac6b9529d9e41a8ab11abd60118fd26e7fda07349d703129054e678ea987b9. 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/USCD50510868.