Martin James Barry (December 8, 1905 – August 20, 1969) was a Canadian professional ice hockey forward who played for the New York Americans, Boston Bruins, Detroit Red Wings, and Montreal Canadiens i
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 0x3a53a63f985dce3dab25c95ebb15a46399455f513ed0c5b484aa3078618d419f. Chain 2 (Bitcoin): anchored in block 954062 (2026-06-17T07:39:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/45c40cd2-4e7d-4d53-b2df-e5c7b0fe0831.json and https://artists.proofprofile.net/proofs/artist/45c40cd2-4e7d-4d53-b2df-e5c7b0fe0831.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 0x460e7d17b1fb154ef933a40cd4d0ab141677e24f6c4bd8f501efc7b29d7dc8e1. 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/IEPSE2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x087965af6aec9f0596dff806ce56e421592c8782a8385083b10c2a4c96b02abc. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/IEPSE2200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04da6ee353b560fa45fee966d8081b2012408660c85a6b3f66e0bd90603a046a. 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/IEPSE2200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6d798079f2dbdac888cc3e31cc40e13f6bbdf10c0f7ff2bcb43af39c5db07fd. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/IEPSE2200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0683b921422ebd2d30936cc6ba5e2f27a14098fb55f9202bb81eabb432e9167b. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/IEPSE2200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x916318297973042996849c11e21beb8a6dea25f8937ea5838413154f0984158b. 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/IEPSE2200007.
Nia's Barndance / The Laird of St.Johnston
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaff9d3895190e2242d841b193635660c83bea237aba5ea26cca0a9b8d9063e5. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/IEPSE2200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6e6c57bd602a74366858efab3fb57b2a7a18aef61a3951c36ca730a666c3cd7. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/IEPSE2200011.
The Templehouse / The Old Bush / Paddy's Trip to Scotland
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86b2470dafed697091380948d5251a2880081d67828970224f430f1ad76a8d77. 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/IEPSE2200013.