Douglas Anderson Supernaw (September 26, 1960November 13, 2020) was an American country music artist. After several years performing as a local musician throughout the state of Texas, he signed with B
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 0x3eb3bda6ad76ae328c22236628de43cf3eb42dceaf56baa64ee6684fa1c9d287. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/64767b0e-1732-46e3-ac5a-dd1216a54837.json and https://artists.proofprofile.net/proofs/artist/64767b0e-1732-46e3-ac5a-dd1216a54837.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 0xe731f0b7ed90e5824dab51b32f750fc2376b3a86ebd224a3abb4d3bb76ac2e63. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T03:07:49Z), 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/USBN19200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a9f19a76e2ce1ce850689d57e21f720c65b69a82c2e19570bda5efd58866256. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USBN19200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a44c5b9e68bd4bc1b503067834342ddc787df44aa39063fcdb7fd7d8ba77981. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USBN19200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3eb0233bbc26fe3806257863a77616325ea37d02bc58e335a435815c948088f. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/USBN19200010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x699b829721ad5b27afa4671ef918749c7cbb6a478f37a3d9164340f6650a4b2d. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:50:25Z), 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/USGI19500036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6bb4d851ef65d300cf962f1a64f1febbc4c4bbfce6ae2579b01d203cb2783bd. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T02:08:45Z), 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/USGI10100189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x054393241388bb991ce113ed8d0c38f64726dbe5a65e460f0ddd91ecfb30ea0d. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T02:15:34Z), 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/USGI10100192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58e3160ffad971eb65d82d4d13fc3951391fe1f222f9453380d4c483d4226aed. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USGI10100195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43f7a30e29089460ce96f8184938389c90d4374df2e1b623b952d9d5e1396882. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/USBGG1700013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd695970f831af69196844384a31b50ca2303a4767b5fe3bb1fbbf65a42e8a634. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/USBGG1700015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dfa34d4b43d9c3664e8f093dce01f5a7807730173be8f4ff94b267511e4c8e9. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/USBGG1700014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cc83912f9a189a6e491b8ffe8ae63d394c79f87e1fa8db382d49c9cdc68033a. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/USBGG1700017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x775a1225bb30f63da32f7535acbb248d25b1a65c8f487fde723ddc021a8f0014. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USBGG1700020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdedd44d9c96fe63ab9c197159de6db76e27b2fe031ed67c6770947ccaa46302b. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USBGG1700021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53d212c2e362ac5d7eb5b6444a04d4b7b1a5d316be61c7a250b197fbf34441bd. 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/USBN19200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53d212c2e362ac5d7eb5b6444a04d4b7b1a5d316be61c7a250b197fbf34441bd. 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/USBN19200003.
Boots, Buckles & Spurs - 50 Songs Celebrate 50 Years of Cowboy Tradition
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96442eebd346baae8b8208291b957530b2b78465fd3c867e0168bcf0156081b6. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USBN19400123.
Stars and Stripes: Songs of the Beach Boys
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd92504004480c88d3a3928bdda916c7e0f9845fdde0d11a694481d03da3b76e3. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/USCMG9600615.
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