The Military Wives Choirs is a registered charity and network of 70 choirs in British military bases across the UK and overseas, bringing women in the military community closer together through singin
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 0x3568f05196eb3755710fc76d200cd0ebb5ac12672e81992197cfaec32f6614b5. 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/253846f8-6a6d-4d9e-82d7-85106bfde90f.json and https://artists.proofprofile.net/proofs/artist/253846f8-6a6d-4d9e-82d7-85106bfde90f.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 0x3d865e0f1764575ab3f363484d82025c01269d7c6ba7c431d9bd4dd93039addc. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBUM71200853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33fe1176d5303a97827264ba6f2eb46dfb1c0149281ec4207afc938417470dd2. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBUM71200867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ce3e5fe52cb3bf5f381e02a641eac9fc64403776e5734767bc18635891c4343. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBUM71200766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a0ea3011f619fdaafbb5c5f69dd5cf3c4375d6d8baacd5e5e0d0dca02e697c2. 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/GBUM71200861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3d8c471b03f01be2dce15f091d31f4e4145ccdcb9275ef03ba774a9e216e695. 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/GBUM71200864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ca62d8a4f3998bdc0e0373bc594dbc0e582106e0560a681bdcd43f6c571d0c1. 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/GBUM71200727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f0756580bb9f0b0d01b9256b9b4dfee4aae212c9ea36e40a88cb2f7fdd2df26. 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/GBUM71200858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa9fbbb13a3cac9ca0bcfeeda6c5f83f7de357d43b5a0c5304a7fd323491f3a0. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBUM71200860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56d2ca3ed19d3d4e5d9629436ce87ef763c8bcdb6e2250780678a41c62c3baec. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GBUM71200857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29c0acbd0e9f6c581dc3a33cc4acecdf20b3acd99ec9e0a83e25357c0ff74b39. 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/GBUM71200852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9d1b5741d818760f5ac0d98fb41886a1696ebc4de9b0575ee83ebe890b2003b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBUM71110865.
Unmasked: The Platinum Collection (Deluxe)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc885581ff446c6b1a54535ca6dc457f8be09c7f475ee0eae3ace34c638ca9efa. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBUM71206801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ce3e5fe52cb3bf5f381e02a641eac9fc64403776e5734767bc18635891c4343. 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/GBUM71200766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9d1b5741d818760f5ac0d98fb41886a1696ebc4de9b0575ee83ebe890b2003b. 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/GBUM71110865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc885581ff446c6b1a54535ca6dc457f8be09c7f475ee0eae3ace34c638ca9efa. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBUM71206801.