The Blues Band were a British blues band formed in 1979 by Paul Jones, former lead vocalist and harmonica player with Manfred Mann, and guitarist Tom McGuinness also of Manfred Mann and The Roosters.
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 0x48614ce81362c781d0013e3a9c2b75ebc5b3f53b42b0e2af6c84e52576825b0e. 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/2ae4c84e-b5c9-4da2-b8fa-ba9d2a63decc.json and https://artists.proofprofile.net/proofs/artist/2ae4c84e-b5c9-4da2-b8fa-ba9d2a63decc.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 0x987f343af90b8c45b94805c4cd188e5b4c29d200a762c3dab01a33a3938db5c4. 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/DED461900167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dd17099ebf092f24aa306c274c59401c330d33cea01078c789c1c57dd5c557a. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/DED461900169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe595d52a9f89db44bfcb72d187bec67f7f7c5711e12216182391ad3bda41e126. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/DED461900172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf68c06e44f8d090be3a3acbec21df45cfcaa08f9da739c52fa35e7dec2871853. 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/DED461900173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e58201cc361fe6f46864d935bb62892554250547c6ea778c1a84c4c799622b9. 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/DED461900174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f4fcd68872a793aea94ebf322f6084a5942b17bdd8274117e0ac91139c03bf4. 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/DED461900177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90fe2166039c1fcf57da27bebf58b4a2662e476082cd1b021d2b18e9354cca37. 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/DED461900179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb21388ab92c219b61807e743203e1f5ee9b27c83378387534edf6ab35f59b73d. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T14:51:22Z), 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/DED461900165.
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 0xeb1bb1b2949b49235ab43ab8f1c13040874a9600a14b293e50453957d1647d73. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/DED461900166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23a8462a7000c912a58a9c88e4027ac32177eaf7b14d30a88304df15b7e6527e. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/DED461900168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6083be83d2757f22f75e4ad4fe0b00ec12c9becff78c69ff8b647feaf5c2309f. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/DED461900170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5789d635df52018d970c155e5aaad14d2e6520b395d196aa6683c73cc99279a. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/DED461900171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8ea21ba908358858b144953c4abb592fa713288330c812beb21874235bee546. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/DED461900176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c6544c8174e3ab7cdffe00a4c0d10143c8907367670dd67fa5b4738d2e6d839. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/DED461900180.