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 0xc18d1edfcc309c354243d48b0843ebdf69f9a36fb37dd18e93a2e4327a1230de. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/77fb288f-3cd2-4d98-bc88-188e8d75e44d.json and https://artists.proofprofile.net/proofs/artist/77fb288f-3cd2-4d98-bc88-188e8d75e44d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Red Allen: Original 1933-1941 Recordings
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 0xd40889ee9d5f650e1a7a1bcd347962aa0a5130bdbfa611783844b3790a553a25. 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/SE2IL8900302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc32791ed412279df4c5d9cf9a88f1f96d689bbb6ce72a80515a0f2ed041c0349. 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/SE2IL8900312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6768f976f835b6c14ffb8e4271e70a097ed041a9aa5ee262b0b0570c81b6390f. 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/SE2IL8900313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b6a4274ef3386a8d094b7a25d066a5c48a2773e34fcf8690918d3213ae2ea64. 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/SE2IL8900318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5534c09b180e34db5c4e6b681f9c176a6f875b87dd3f1f8789334630c8619acf. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/SE2IL8900304.
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 0x8cf0265f142c5d2884ebdb41c28e1236f533b285741df82074c9208a09d223ef. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/SE2IL8900316.
The Incomparable Henry Red Allen - the Golden Years, Vol. 4
The Incomparable Henry Red Allen - the Golden Years, Vol. 3
The Incomparable Henry Red Allen: The Golden Years, Vol. 2
The Incomparable Henry Red Allen, Vol. 1: The Golden Years
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd134a20a0e9c0e2503576ca4ba38ebe6338c2865634c0424a0400b024a7d8cff. 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/GBBMR1928818.
Red Allen and the Blues Singers, Vol. 2 (Original Recordings 1940)
Red Allen and the Blues Singers, Vol. 1 (Original Recordings 1938 - 1940)
Jazz at the Metropole Café (Live;2013 - Remaster)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9113f7ae4da570b6823bcc8de1be0636379d6bd24b992fd98ced83df2b8ae659. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USA560849593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe876a75d26e25cd78d759f0bef22c91548053a53a22e048f7670d25656ec6d53. 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/USA560849609.
You'll Never Go To Heaven (If You Break My Heart) (06-19-37)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19f99e6e6f4dc64cbeda3fcc9fd74f63586029fc0c3ccdcc57b03759b27975c3. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/USA560849595.
Henry "Red" Allen with the Alex Welsh Band
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd859f5058a559b0cf6014338fceedbcdcdf4f0cec30347d0175e1086301b4fe. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBLGL0800371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb7ea4b3c730daa14bc02736f8127c8e58a0a423d4f8d29f11d5d248080b6ff2. 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/GBLGL0800376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e537cada086a34fe516f21921f0f4940956423cfe902ebd18df6fe176387fdd. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/GBLGL0800385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aff7838c4fb8d26006b07972ac67963bb5b31fa00c0099ef43ca52837225ca1. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/GBLGL0800365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd72a93bda12390897a038a47b536442a4e14ac92d1c1225721febc529a0d43f6. Chain 2 (Bitcoin): anchored in block 960456 (2026-07-31T19:53:57Z), 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/GBLGL0800366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29cab32e8f3fa31a4bb3326b705a05699e529a4283b2f415ea96ec8414ff3a6f. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/GBLGL0800370.
The Henry Allen Collection Vol. 6 - 1941-1946
The Henry Allen Collection Vol. 5 - 1937-1941
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb98f200d1e2600bf0b7b3a7a4e6d0c760eaddf86a2bb01b0763b38a211f96fd4. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DKEFA0607209.
The Henry Allen Collection Vol. 4 - 1936-1937
The Henry Allen Collection Vol. 3 - 1935-1936