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 0xec033c005d8b5c8d11040ec7f4c167e87b9ec5f17f72399847f1c511241e9687. 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/0391eee0-77d2-4b1e-9589-c03996cbf85d.json and https://artists.proofprofile.net/proofs/artist/0391eee0-77d2-4b1e-9589-c03996cbf85d.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 0x4241349970d21dda11025b93e8088f8ca3d70537baa1d0cec296bfa1be417328. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/GBHPZ0400072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e945e6fe8226f4a91e5e2d0e37fd3d136c5b4607f7e9cb461f74e018cb969f9. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/GBHPZ0400076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfab9d5fa1ed45b1e71a052d77799e78c489ce7e00f28127a3da4da0c9ff952c4. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:06:26Z), 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/GBHPZ0400078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86f3f9020b84b3969943c6740a5c65b70b6e454740b2a6399f76824c59550a56. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T08:07:34Z), 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/GBHPZ0400079.
One Of A Kind (Expanded & Remixed Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5f8ad4b81b76d5f7c6a55c92d685a6f2ae538944691e268bb7c1f3b16fe6f7a. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/GBHPZ0400095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29919eefae8154dacfd7bafdaccd15c49b063300528fff0a07ac1e73c2101cf2. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/GBHPZ0400096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c099c892e949367ce5535c24303ae48be1cc1eed476f8ff98bf7e99503f5e11. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T22:03:23Z), 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/GBHPZ0400097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6059f50004df2d3169a3ce9bb3961edc0acd37873ef33a10acb704ac1f03e63d. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/GBHPZ0400098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b99cec2972fb62da7741a69bb21bb9d510f6acd571b4f155b1451588179751b. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/GBHPZ0400099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb30b60bb4490a6375a75e2c77c0c18ce14463616a9f299be333fcff64c751ee2. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/GBHPZ0400100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4b81381cfc24e9218a0e440adf86242b985d9aaff3784db621cc3df8e0e99a0. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/GBHPZ0400101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eab9117bec4637947c959bab84e7b155e6d66d0366af4f756fbf9c55bcc50cb. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/GBHPZ0400103.
Gradually Going Tornado / The Bruford Tapes (Remastered)
Live At The Venue / 4th Album Rehearsal Sessions
The Best Of Bill Bruford: The Winterfold & Summerfold Years
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81fe09f15d4d2da9a5e6e29d857c9e848ad413d81ffaa6e7f7b14214af2587b7. 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/GBHPZ0800045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46c3363c3fe10456a34e3ec436bad961fb2988efa6716ce5772e23fa1410e6c3. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBHPZ0800046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe06b2cc2c78c6d968afecdbc70cfd519641701a9fb558b0638ae89402387ff7e. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBHPZ0800048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d73c334fa069af5373c5b37a2bb100c549c911a265f3a033553f9427abd35e3. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/GBHPZ0800044.
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 0xde8cf445f61611863e5717f4a6381d671e62d641d8b6b0508d5ebc2f9fd12332. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/GBHPZ0800047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a0bfa5f3cfb7f1ad368609cf347829d25fa7a6c7036177cb37a4910d3c5032f. 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/GBHPZ1700064.