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 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 0xfd3487cf7aa32dfb731fea5e2abedb5c47f0706f2ba9378a5164c35198d8dcfa. Chain 2 (Bitcoin): anchored in block 953704 (2026-06-14T22:58:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7ac52664-5695-41e1-9b4d-cefc13775a91.json and https://artists.proofprofile.net/proofs/artist/7ac52664-5695-41e1-9b4d-cefc13775a91.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Barabara Needhams, Christy Barrys, Bye A While
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 0x9bb2a2b65fcfc6f9a163dbadb9233346d5dd1065561c6a20366dbfecd2c5337e. 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/USX9P0695940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89172b9d7ad031293f0c96d4e3ad0b51f5cb7bb888f50abaedd7f189a3c76f11. 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/USX9P0695950.
It's a Thought When You Think About It / The Slide from Grace / The Star Above the Garter
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41da0cca08fc3ed51329d30762f1996575f812ca708168054aba1f265297b78c. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/IEHSA1300001.
Ironic Delaney / Lúna in the Sky / Thank You Sean
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33804f25d2b7a4255cddf3d7a82b3bf580aae66a01de2a3f8d5540331e028c1a. 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/IEHSA1300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbe315451fb36f1bcc7e1c79912d43568e5ef4d9c65e7e0bbf8908fa61491261. Chain 2 (Bitcoin): anchored in block 960381 (2026-07-31T09:50:11Z), 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/IEHSA1300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bd5f18aefa888c88ddc5206d35bbfa84793b43be63cc27766bd6e9573c475f3. 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/IEHSA1300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55b5665eb10a2c862ab7fa28ab685f69f3148cf77239572a61aae61be9999469. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/IEHSA1300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc96a86c4eec9322a0b89906ae80ea6a459cfb1ccf200e02afeffbbead6f72b46. 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/IEHSA1300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd70d69abd425c2dc26ba486e457dc30c08b50981f299f17ee82e0d4a78f46704. 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/IEHSA1300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98da7404afbea31b16b0ac0a089ee279e314e553da79e9f9d57082b7ea1e5c41. 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/IEHSA1300008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa75bae4b0feb1d08544536978e12ef5473ef42820d5a40b43dd580e45b5393e0. 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/IEHSA1300009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x110370e66cb9c1bf2178e5207f5093ab78bab2620d070f09cd15ba78fae06577. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/IEHSA1300010.
May's Smile (feat. Tyler Duncan, Mike Shimmin & Joe Dart)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb869f6fbe965326175b25b0c6f493de81d23636ca0bf9996bd94e60bfbc7ce96. Chain 2 (Bitcoin): anchored in block 960181 (2026-07-30T00:53:20Z), 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/IEJGS1300001.
Megan's Dance (feat. Tyler Duncan, Mike Shimmin & Joe Dart)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcff84e1d6cd584888d0e0555dfd2c576f0514b3099b0ab7d621f38dc189bd7e7. 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/IEJGS1300002.
Hiding in the Magic World (feat. Tyler Duncan, Mike Shimmin, Joe Dart & Jeremy Kittel)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f50e747491923a65711f38a3d7509019d55a786af59c40ef697c344052fa5b9. Chain 2 (Bitcoin): anchored in block 960311 (2026-07-30T20:45:02Z), 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/IEJGS1300003.
Lost in an Idea (feat. Tyler Duncan, Mike Shimmin & Joe Dart)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a795b0718a4763140ab67aabdf600cc4e1303e90b59ab733407ff84ffd9d8dd. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/IEJGS1300004.
True Logic (feat. Tyler Duncan, Mike Shimmin & Joe Dart)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x959977c1a9b42327b12a8dd485086cc022e725d4884fdadd5e1cc3b27e6f5941. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/IEJGS1300006.
The 100 Kilo Case (feat. Tyler Duncan, Mike Shimmin & Joe Dart)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x077fc710fa70f5a642d1103d0447d3317391921f79b9e677b17ab1e921441d24. 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/IEJGS1300007.
The Lookout Pack (feat. Tyler Duncan, Mike Shimmin & Joe Dart)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x248210f40820c62257c2e4cce82abc24f53d02f35bfe29003f44c586c9804a28. 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/IEJGS1300008.
Will I Wont (feat. Tyler Duncan, Mike Shimmin, Joe Dart & Jeremy Kittel)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7364f44a3e0583896e6001158d905dcdc2ae3703bf6faa08dd6b333ac779f424. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/IEJGS1300011.
The Snowy Hills of Caherea / The Five Pillars
The Sunny Hills of Beara / I Buried My Wife and Danced on Her Grave / Strop the Razor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09e57e4384f7176280958ef04c14d9fdf03233fa981b447bbb0f830670278005. 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/IEJGS2200001.