Bruce Douglas Cockburn ( ; born May 27, 1945)Allen, 66 is a Canadian singer-songwriter and guitarist. His song styles range from folk to folk- and jazz-influenced rock to soundscapes accompanying spo
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 0x7f525e11f00621d1f53c82fdf43323c45eadfcc2c868e5dd4b0d0bf330651e68. 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/0eca7d3b-ff46-4c5b-8562-17d158f4642f.json and https://artists.proofprofile.net/proofs/artist/0eca7d3b-ff46-4c5b-8562-17d158f4642f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Dancing In The Dragon's Jaws (Deluxe Edition)
Breakfast In New Orleans Dinner In Timbuktu
If I Had a Rocket Launcher - 2 Meter Session
Jan Douwe Kroeske presents: 2 Meter Sessions, Vol. 1
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 0x2a6a966a8bd512f33c158f4b9ee5f639278762c9f10dcdf1a7183bcef80ef969. 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/NL07C1700508.
Jan Douwe Kroeske presents: The Best of 2 Meter Sessions 1987-2009
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf313a84fcdf591a8843276481992562faa3214909e26dbde38269cf3860fee34. 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/NL07C2061808.
Where Have All The Flowers Gone: The Songs Of Pete Seeger
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc34dd17de862fbe6875b7a150dd55f42e8553ad4bcb3218705c56d0136fc5280. 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/USASR0502406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb39160ebf8216bfec85621adb85597c02f80a071e8ce766c99fd798ff609cfeb. 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/USA5N0300305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1713d1c7ec9013eaf43ab1b6d0e05c8e43fcb9304f8c46c70e4ce0206ce45154. 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/US6R21334325.
Jan Douwe Kroeske presents: 2 Meter Sessions, Vol. 7
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96688703a5a576d94acc8c0513d13658cbc66c5db6cfc9d3149bea9552ca216d. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/NL07C1700638.
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 0x9d8127f786436097ebd1c4a16b3ba9c9b952b7ee2442126f9d9a7daf75079ad2. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/US28S0410378.
Strong Hand Of Love - A Tribute To Mark Heard
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63081c85e2ae24b05878331fe61f83055feb07022cc1f28d618983b26465bba3. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/US28S9410407.