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 0xf9cd0d12335c29f6811a31ba321eccac0e02b10ae937a6698b7136b98173cde1. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/830d6358-4d1d-45c6-a8c8-b8acee21f22a.json and https://artists.proofprofile.net/proofs/artist/830d6358-4d1d-45c6-a8c8-b8acee21f22a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
I Want Out - Live At Loud Park Festival 2011
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 0xdd0347b74034cab180ffaadfad117d0b2a3669463aede47a201637932cc2170c. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T04:56:40Z), 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/DEH841101000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65212d39825c166fc5c1856c38a486c70891c93535df873f7bafe04e67a28d6c. 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/DEH841200040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9758ccc8f71f8afe662a84e9f4bc1f8546b16a93ac9d5d86d31d9273a8e49146. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/DEH841200044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeabfe5b984f086825f8c753eab246963953f1b15cf30dceaa241cb2587b70049. 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/DEH841200042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad92500b0caad9354e5d8748221dbcd44940cf35c8eabfa9531a401fdd93393c. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/DEH841200043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15d1e36c3c502cac31c92cde73676512edd79fd813a6cd5a4e9cfb59f91a155d. 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/DEH841200045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bede184be61430bacd9db7d3f402d7bccd65afa91f61698af70213151d97590. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/DEH841200046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x355d0eb54606a7298388eef8d4123a68f4b6c7395bfd09c32996eb08ad388e6f. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/DEH841200037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aab2eac66c7f94158892d9cbf705b1c5ef1542c428f411f41a9edca00e34c55. Chain 2 (Bitcoin): anchored in block 957720 (2026-07-12T15:26:09Z), 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/DEH841400206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45b2125e6e6d422403269be5e392c3dfbbc98f170da2715f591df70dce009836. 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/DEH841400208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96fc5b738459119a8b2cea7edef364b8ea0435f22803b0e4de16866bb33906d9. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T00:41:40Z), 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/DEH841400212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfabd74feec32735d8f82793604f6a6f67d61bb70de3966254cdf61d56c9f1ba7. 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/DEH841400202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x160be1f3f18d9727be80b1fed6ea8ea8c52dcaff82c1a76520b1d7452e489e8c. 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/DEH841400210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1389162144df2a324c622f4b0a8356103d0085df497b27c2c2d8c27274086719. 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/DEH841700323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56cc55e7ce90327f4fcb6f4f83cc424d972e1f3a5866593d96fa69c4821fa1eb. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/DEH841700331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x355d0eb54606a7298388eef8d4123a68f4b6c7395bfd09c32996eb08ad388e6f. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DEH841200037.
Live At Wacken 2016 - 27 Years Faster : Harder : Louder
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1ccb56183f21f1031dc74ed96dfae6a11ab22423a3df8ce1f83d015c128fa2d. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/UKKY81700036.
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