Doug Beavers is an American Grammy Award-winning trombonist, arranger, composer and producer. Life and career Beavers received a BA in music from California State University, East Bay, an MA in compo
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 0x94f3d3747ab8614a98bcbb09b2b07d8b4ecd0daed108832fa156360bec297072. Chain 2 (Bitcoin): anchored in block 953657 (2026-06-14T16:43:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4e8a094b-b6d1-4e26-ba10-27876abcd945.json and https://artists.proofprofile.net/proofs/artist/4e8a094b-b6d1-4e26-ba10-27876abcd945.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Salsa Christmas!: I'll Be Home for Christmas / Sleigh Ride / You're a Mean One, Mr. Grinch! / Noche De Paz / Hasta Aqui Llegamos / Winter Wonderland
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 0x3d2f061765064f9d9fb21c33730cf13c2686a269f995bc54b1fc6391ca1d3890. 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/USDBV1500221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f091bbb70626aa3eb79e71cad45ec89e0dc4249766042008fb7f9a9f7ad819a. 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/USDBV1500222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71339e8e3dfd402096f0389fd8a2297724e0c2e1efd8949c4e22473a430fc443. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/USDBV1500224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe46425a96bca6cfd0260cd5ee4494ab57dde6c55d06f6178ed9ad003ca5475e1. 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/USDBV1500225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x935538d0bbf2cabef31ca23b3e00e03130ff11c5894967d15841efcffb8f4eb8. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/USDBV1500232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15abc73e2eac3348db7ca3b2991e9c2c68b2faae81fd7c0db64927e37aa2013f. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/QZMEQ2072154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fd26cfb67a230c0832ff6fa49de9f42683c65801c10f2e0c420acd8013cbe6b. 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/QZMEQ2072164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41416f343c510d09914505be8f37bf143de3b755151ef12f1b63fec5a07f906d. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/QZK6H2364935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45e5bb6a6553fda90c314661ba06e11e3b24b1d53905256c6070f759d4d9464f. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/QMAAK2264034.