thumb|Turin Brakes in concert, 2003 Turin Brakes are an English band, comprising the original duo Olly Knights and Gale Paridjanian, and long-term collaborators Rob Allum and Eddie Myer. They had a UK
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 0xce2e7c0be90f0f02a8827e98660c93b56293b5a0f5eb2dfeb8ce6f78f5ecd5ff. 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/2a6a03e2-fbe7-4c9f-a9e2-57069565e706.json and https://artists.proofprofile.net/proofs/artist/2a6a03e2-fbe7-4c9f-a9e2-57069565e706.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 0xc0b3f06e93ff8adcf7fd329aa9e17aaad8fb7e677fbe374267c5bcb44a28d1f9. Chain 2 (Bitcoin): anchored in block 957884 (2026-07-13T16:55:06Z), 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/GBDCG0000106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4835868406f9acbe294ea4ef13814513c054f07795d4cbeb21e190996137e90. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:03:59Z), 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/GBDCG0000108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa10f7cb8b6b1e36949c1946dc08b17fd0ab57d0740e4d190ed37a5da4d4a1ead. 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/GBDCG0000109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x468068f4d0f0646f07cc52b7016f8c75daf984b043b8f86b66b4730f136d88bc. 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/GBDCG0000110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23c06ae360bffa44f5fb34ae3ee8ea2f6c544537c903775710052eee5b81bf03. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/GBDCG0000111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aaf866e32a5eb4aa94ca3bb6b333996952549c3d727dbc33ec55ec2cae41105. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/GBDCG0200417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc076de08083f08ffd4430064e69c3f21d4dd2884f5d14fc71dd582f48e05db2a. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/GBDCG0200421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff831204981b6885dcda8ac277ac9ee54688d3f9e2bd8a86b0e0c9a420575204. 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/GBDCG0200422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x393fe55e0afd822d7627309734a15ac1fdcc2590c57d0a4d7f55be6094005a72. Chain 2 (Bitcoin): anchored in block 958366 (2026-07-17T04:59:09Z), 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/GBDCG0200423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69acdc74277022e25ceade387678feba552669c2b2d7a0953061f3ddcaaaf44d. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/GBDCG0200426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6695a51838934483ab9f06173edf6810c167c2ad7cd0f02f209e5b71d95e74f. 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/GBDCG0200427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67ab3889eaf4decbc01dcb86de195ca75cfa5d74ba00e76305d5a6d1f54e37c3. 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/GBDCG0200429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3166dcf62f049ce52581f237f9383e5f5514670284959ac80ce8b6034047601b. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T21:42:01Z), 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/GBDCG0300046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe52411c589355b88a8579a27cdedaaf00b30d182e75d327aeb5d0cd0a2f1c601. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/GBDCG0200446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d1d5b60b58b09abf961a919f3d4e044b0c84785799c87f5adaae3e5bc8f5e77. 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/GBDCG0500019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4f761f7941169f218e12e26858c935a96eb6528067351cdadb74219df693a3e. 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/GBDCG0500020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc912b1acac835b9207d21fc510e91065e978b68eedf8ee35099415a97fcb7969. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:02:02Z), 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/GBDCG0500021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5df8ea14deb9f7cedf8b8d506d5ec108a4acd157a8830ea72fc2430832c13cbf. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/GBDCG0500024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ee7be805f921e00a9ed607f6e02b634733473cd33173a3563b474841fcf1b27. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:10:09Z), 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/GBDCG0500025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58d8a36f9ab21d0eece7b066209669e261badbfb7b95dbabf465f32310eab500. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T13:00:55Z), 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/GBDCG0500028.
Fishing For A Dream (Live From Bush Hall)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87712f01f4e2e3566963a76dea4c27f333376c16438d0f57136ff1fff9a77477. 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/GBDCG0700002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3229d5982e46436f0bf396d1ec1171ff135194048742ef4d9f3c23e0001706d. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/GBDCG0700004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9163b4812e0986e34cbb79d46ef65a16816163fb4962c696b3bb3d67c7388cbd. 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/GBDCG0700006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1f0371b3ef193e991d27f15532909e25f7bdbcbc967405886848b49fdad4927. 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/GBDCG0700007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6b62146a097dd5915191e923a43ffd374008f6c8892e7038777f2b8c5916e0d. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-20T00:13:00Z), 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/GBDCG0700012.
Bottled At Source - The Best Of The Source Years
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fa58233448e8131952aa4f82250f23c1488a8caa1b09304450f274463b97e6d. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/GBCEJ0900487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2146087562a05400e0284991bb2d16a8bc64d30b05dd95b016734d735fb030ce. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/GBCEJ0900488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76016573c02e776f385de88bdaa166b5dbaa5dc34dd5dfc9a0197d33de1aed1f. 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/GBCEJ0900489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0646c045f40248ebda1ecec4ad17becffa521f011f5264981760b83879e3073. 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/GBCEJ0900491.
The Optimist Live (London, KOKO 11.11.11)
The Optimist Live 2011 - London, Koko on the 11.11.11
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc3104e7d203f5afa8052594e5b4dbbfd370cb0fbeea9c9519d994d7c4cb4557. 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/GBCEJ1300257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13317c2885bf714c14ab1fcfc126d6175a8ebe2914dbf9206466e7a300d994c6. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/GBCEJ1300263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x153a713a0ce03dbbf6d799b00afff8fa1d347c40d56b5bae3466383f91cb69e2. 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/GBCEJ1300255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa01d59d097427f561ef42f5a77359da40cc76056b131e3b9da2d866148a0a13d. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:22:37Z), 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/GBCEJ1300260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d7f998dda73d9e54faf626e75d78e247f1d0e20ea85f36d6fee8f49c337e8e8. 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/GBCEJ1300256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16f0747ca8a997714e5cb9fcce9414b3f5e8f6cad5c8eb1e001fe64c6909f46b. Chain 2 (Bitcoin): anchored in block 956482 (2026-07-03T10:33:57Z), 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/GBCEJ1501008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x747b2215030ae41cd712f3e18a77cc28f49aff6c8773fd5934d802a5a90c7dec. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T16:27:53Z), 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/GBCEJ1501009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e08adf9f40e67ffda8f7f0287186462597853d96d1709b24c1057dc2b6ac90b. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:17:12Z), 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/GBCEJ1501010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ea8dd3eea66a196bc0ceda0728673e9cf8e45fdbed12a922fb40e892e59f927. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/GBCEJ1501014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c288ef415b68cbc72c1d93ca7f98d294b407ef90fed5b8ab98853b81d970695. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:36:41Z), 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/GBCEJ1501015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x267f8e27b18577d7a46b5d5e079ad78bff9b453c0e488aa0e15d3c5a69756014. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/GBCEJ1501007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58b0269d50651b9785073ca6963c6737e120167f469323c0c59a202f6211a74f. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/GBCEJ1700390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb00e3adc5449913b2a6a55854f0b307b6bb760eeeed87a055d222252e121747c. 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/GBCEJ1700391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd515cbe060bb2d7ef8d855ea0c216d71789906cc9108f0680c192e6670254825. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/GBCEJ1700392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x932b0a659e1201385ad6ccfb0c564f47a4d345f19422e0e97b5ae5624b07383e. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/GBCEJ1700393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18665fc175010fb7b0fad960c998d891f4a0de6d7c026bda8c853e9d82fa424d. Chain 2 (Bitcoin): anchored in block 957884 (2026-07-13T16:55:06Z), 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/GBCEJ1800190.
The Optimist LP - Original Demos (Demo Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x810177ebe93c8fc72f2773841f4c282dcf0e5ba4a334007c987f90d7632ca3b9. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/GBCEJ2100354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca797fb2c05097444e727993c3c1771625c278155acf3ff5082693cd1b0b81fa. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/GBCEJ2100355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8036b9d1d5a6bde59b67b42b393b68fa7e936af83d174487cd1878d3c55cbbf. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/GBCEJ2100356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf821a083e310a6691bc02dcec72d58eb195c151c488323040b34a5475c5300cf. 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/GBCEJ2100357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde0cdebc7f8397f3cd09ab04b221238621c9c1df399ec3e5bedf5152b2fa1d22. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/GBCEJ2100358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda7361b9f1bfdd34b932f4d0d30dcbb4ced80f70cccdc68af4b75831e0334457. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/GBCEJ2100359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14df0c5739ba336c2d65ee52113443bcee2f6aeea11e26bcbb2eea0656851818. 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/GBCEJ2100360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79d489634b84091de6194d9e288fac832efbebc9909e70558608ebe05d404d47. 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/GBCEJ2100362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca9fe297c34160d1500dc50027af2d9d5886fa54c98ba1b19c414190393a9c44. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/GBCEJ2100363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a8339e083024d4831c8373a0d1060e052fb97f2151048bf62d786d6ee89f7af. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-19T23:48:03Z), 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/GBCEJ2100364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2d173fcdf0fa610e64d5b1b2eb260158e4920d83aae6fcb1ec0333228290cad. 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/GBUM91900120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f9d608e4706ca4729f28705bcb75271e84dce06252714c27ca7c81ca5e7431f. 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/GBFFA1200117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x683aeaa8a69ce9f24947d17cfa2d3c90e011249fdd8bae3dee2c29cd776f2b6f. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/GBDCG0200371.
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