thumb|Bunworth Banshee, Fairy Legends and Traditions of the South of Ireland, by Thomas Crofton Croker, 1825|300x300px A banshee ( ; Modern Irish , from , "woman of the fairy mound" or "fairy woman
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 0xfe958b751a95651c540a36fbdb15cc99a7301551957d3348ac338a11ba39e323. 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/96796338-3c09-475d-af3b-b40b4a033334.json and https://artists.proofprofile.net/proofs/artist/96796338-3c09-475d-af3b-b40b4a033334.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 0x45cf482f3123a4e281abf89cd7adc7ed1844a37c6ec9c28f20b3b097eaeaff42. 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/GBMA22413138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x659caac13a4464d5aa4e962a0021eb35329e0208951864795dd3980597599cc6. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/GBMA22413139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x908e381b5256876b6e586ea7339a106423e55a06ffe81338ee8c9d6b22e9f9cb. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/GBMA22413140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d32e456c476ee45122a7629c04964b3be97feb3b2243cd664244025a78ded91. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T16:17:58Z), 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/GBMA22413142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2c1c6ecff11461054216da620f6f4681d6a491491f0772d8c330fb799d8dcd6. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/GBMA22413143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19db14a1ab591af2a68daee6922fd8c106f0ad31e3d38c28b27fbd0800abc17e. 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/GBMA22413144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc82f38d6664757ced2649613136dac92a334f56b4b6d1318f9d520b8abd98c13. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/GBMA22413145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49f63921710edf38aaaf8b29cd24d128da17c9e43b7eca784cb53cad3b5dbab3. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/GBMA22413146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x705039a25d9b13f5b59deaed7a1e2a38dc54e9231aefe104eb0c48eefcd0c30a. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/GBMA22452444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34e8f5dc6a174af591e187cc1052c083e3d33113231c421f693255bfacd78a68. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/GBMA22452439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f195fe66abe9d5fd3a61d79c0f5cb62218a40254e584e2f40909803f1293b5b. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/GBMA22452440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0b5d9a191db2c0f117c39ece0d2bef162e330a8036e42507c70c874dfedeb75. 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/GBMA22452442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6025491ac1c5a0c7d21b536d9350592b054b7bb8d4e11abf382158c2f5e9cd6f. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/GBMA22452443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda72558d0ff68de47316d46cb31797acfd933f6679c6d0ef49e728cd832b0a70. 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/GBMA22452445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e96e3998f0f982edc698f48fc89835c071e2ba218bb78609adeec20459bb929. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/UKXN22596886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7cb66abd22f68a29e6bfd6e10c6e77ee480df4e68e7b137ebc2d41e33c2ce88. 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/UKXN22596887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95617948583367427ae122e6694f8fad9340d3af260964dd7604fc9cca81e464. 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/UKXN22596889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a15a2e167277b20645c86c264594dfcfc0c8ba34ea4e82ec656c934fc5b442e. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/UKXN22596891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa576464bf05c9de33680603bfcdbd73e251bd52a59923f06bec3881033123a44. 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/UKXN22596890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae9ca197067c32d3fed9d09631fea2802bbc20b37c8f15217e54567544d84871. Chain 2 (Bitcoin): anchored in block 958708 (2026-07-19T09:08:25Z), 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/UKXN22596893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2df9c33739a4b33ce3a5acee3ca3a90ca9080b88f7f5547b8040a0090b04e4cb. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/UKXN22596895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d9c9c92c819b67717744a11b74e2643bf01544854418f020f265af5e3122fd2. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/UKXN22596896.