The Cory Band is one of the oldest and best known award-winning brass bands in the world based in Treorchy of the Welsh Valleys, Britain. Ranked the world's No. 1 brass band for 13 consecutive years
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 0x1f3f86ea88cbc844f7aa30326b25aa40cd5f98b0612eb9424816c4bb7d3e876d. 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/019847ac-3899-4165-ba6b-f014183ea098.json and https://artists.proofprofile.net/proofs/artist/019847ac-3899-4165-ba6b-f014183ea098.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 0x280de333aebacc7ae810c61f3d1f27af4418d70527cc1c637645ab8d04040a95. 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/CH6541746922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66a4d3e6207f672f5fe7bd5b7b9c0de3094a63b0df4859c8544712fcb63c5328. 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/GB8XC1419228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacaff49a7a00097a183eec7ffa6b63f0c9e3aaec80b0738693551b0194ee07ee. 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/GB8XC1419230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4ee29618084466aa29b1f0d411adcfd45443e776d1ce81391ac446c913a5573. 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/GB8XC1419233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x215e0374596e23414990e66ad7961475d8b00fb2249616043ee17341f493acec. 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/GB8XC1419236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x511dedada565ce874672d9e7a264c59a81c16f470ccefc4224f07ade6d4e1299. 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/CH6540854160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4de43b0ff1e44c84be7715bf059b9571c8522ecdc995deeec375c9d9cc5d71a. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T16:43:41Z), 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/CH6540854163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0637b9fed403bb61fb8cb9fa33bb39f6ddb6a2a57912841b2a83fd44bf92b4f4. 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/CH6540868098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5a10634f2758ceb512db9c63943ffff524982cd8abbf1f52cbe8575231e5792. 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/CH6540868101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda334cdfa6df6ed421b72f2b3b42e74aa1108cccc2e96b985e69973157be6974. 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/CH6540868109.
Rasputin / Rivers of Babylon / Brown Girl in the Rain / Hooray, Hooray / Mary's Boy Child / Daddy Cool
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f71a3d3e8030641a401c9f0c7914ce07a703f2067c651a45e606dcace6534ea. 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/CH6540868111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x872ffc49a9818f3fcaddc1c81c1da7245a6b4b44257f8d6681025d904d4f9ddb. 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/CH6540868112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x216b38a210d4671c01d510d6a41e28c2e8e447b5c7ba1bb14fb10ad4c8946690. 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/CH6540867308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x251c5b9049257bc2a73507fc0d5e62179e13421197115c7a9b044e4769c9a5a6. 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/CH6540867309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd65b630c11d50a8ce81f886c84b6aa222cba4aa0a451ad414731197a38c66bad. 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/CH6540867312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeb8284af60fc0ddc133fb313b7390d717586b596a120f789ab4e922ee7d7132. 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/CH6540867318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x756e07c06a190f238dd603ca02155bfb3b245d406cef3643ead7ecf80e0ec492. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/CH6540865925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x632fd080eefcace2c95413b51692a6ea9eeff15c741c243c37fc126c4a02afa7. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/CH6540841871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb30fbb9614ce40c933a669544b54170723187096cc743381084d55269e278808. 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/CH6540863156.