Iona is an island in the Inner Hebrides, off the Ross of Mull on the western coast of Scotland. It is mainly known for Iona Abbey, though there are other buildings on the island. Iona Abbey was a cent
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 0xb9c1ec39e61ad51fe33440e2b32b4ff460c0011e44891430defa81f892766985. 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/5ed4c037-86f8-4115-8207-e09313835a72.json and https://artists.proofprofile.net/proofs/artist/5ed4c037-86f8-4115-8207-e09313835a72.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 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 0x01bfe9c277aa25c0b4c009812060ef7164cc7268049eb55d622a840fadfdd05f. 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/USFF19656325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x844e80b55a902f3b03627b17f319c7dc302aba0880f7890a931b485a5cc76316. Chain 2 (Bitcoin): anchored in block 958083 (2026-07-15T01:50:31Z), 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/USFF19656326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59fc74d00968da5429595c594cfe96c51268fbd659943312c09bf91744ecfe21. 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/USFF19656327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x883ba04a1b841350d71895d54d10aff2df5dafbe15e1e49eba893ab21ce1d351. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/USFF19656329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4600e2c67c3039cab39e1c5c576efa6cebc5ec2faa7d24f13466601175344f46. 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/USFF19656330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb24380fe1855cecbd817542f208408f279b66913d2084a6d1708a02c0bacaac0. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/USFF19656331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7480d7add4a47055f766dc80c45a95e06b2c0c10bb3e0471b821cf8e8ce7b0df. 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/USFF19656332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d18281a6c46f81598e0b6d139961220ec7cc005f7c62bb955cbba6230ff2473. 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/USFF19656334.
Heaven's Bright Sun (Live in England, 1996)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66082b1c5d0a475ae176b02f1a9d63242555d607a2ebce1424107a206967af3b. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T13:04:09Z), 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/GBKPL2003231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41c3da8808b9bc6ae5e17cc4922bfb49a2e1d2075d433069ebc070b79b0f1960. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/GBKPL2003234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a5410e949d186c8c92679f60a7406a289ed8e7ed20b33da91eec50858b7e4f4. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T16:15:11Z), 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/GBKPL2003138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56841fb86fcfd232ad8e01212c11e3fb2fe4386c1800e428686e1682c1b409e9. Chain 2 (Bitcoin): anchored in block 959054 (2026-07-21T20:19:31Z), 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/GBKPL2003140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde8ab1f23d1ca0f78b9916aae99aea3beae1f656b7a5d2fb6a8e55630be22075. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/GBKPL2003141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ef982e33ce02bc7ad80f99915aa00007c9b40877a2c562008d3ac102be2b658. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/GBKPL2003148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a5410e949d186c8c92679f60a7406a289ed8e7ed20b33da91eec50858b7e4f4. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/GBKPL2003138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3df355c30d1e50d5635e0902501a1e3101b208f9c014ec184bf77660d597b981. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/GBKPL2151213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x962bea7188ae2631420dc223bfa4254eb2dd4d6cb1037bb163977d7ebf4f5ff0. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T19:27:18Z), 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/GBKPL2151211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b358b15dd475801a8805cd9a4e4b797d1d347985365b8286b619e2cb026d18f. 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/GBKPL2151235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x623b8487aef16fd5014cb39c3f5e13f22725975076b7431cdd894e5fd28bf7a5. 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/GBKPL2151236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0f0effeecac9f09f0cbdf98548823ad1615cc4088fde0cd7e2b6557ccefd251. 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/GBKPL2151212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x678b63ab6a4fc017cc1fc5c82192f633ed65bdd251d358e546946159f58fa492. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T13:01:04Z), 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/GBKPL2151214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x270fc49543bd8feb2815e8de6c74cf3cb7c6721af26424176d95e4de489afc09. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/GBKPL2151210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcda7842835e2ea5ae5211bd08bde4e7121be49d16bfa50f2314b3505b65b1761. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/GBKPL2151239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x371e285760dce0cb28854d0c37e4deb47fc76213e116fa1ef778e671a86cf859. Chain 2 (Bitcoin): anchored in block 956861 (2026-07-06T01:57:57Z), 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/GBKPL2151234.