The Last Bison, formerly known as Bison, is an American indie folk band formed in Chesapeake, Virginia. The Last Bison originally dubbed their sound "mountaintop chamber music," combining elements of
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 0xdf5a0a223fef9a0a0a4703094a3fdc5d660d8858a550bf47f4871d42188ea696. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/eb42e3b3-7f59-411e-a20c-9b198fcfbfdf.json and https://artists.proofprofile.net/proofs/artist/eb42e3b3-7f59-411e-a20c-9b198fcfbfdf.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 0x1d3f46cba607115bc1e726df4a8ae4a2d988c2a2270dca07439d8b53c4c58fc3. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/USUM71210670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d07fad9f89e77e4f42e6bb0c969871a8e1a957eb6c9579ed3f17597aa00ba54. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:46:49Z), 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/USUM71318369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47452e5e22cd66552127c35a1541f6253c275a9b98b8ddf193a10cc7834e6971. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USUM71308488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dd3a89ab2f1ec8944b7ddfb105036f60bfc0d74c0288d3a23865b42d7fae548. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USUM71301004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27dd86213c5e7ab8fd5267d69f4b6e9dd65e99ed7214a43950751d1cbf2248f9. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/USUM71301009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dd3a89ab2f1ec8944b7ddfb105036f60bfc0d74c0288d3a23865b42d7fae548. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USUM71301004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a9beca2f925f2fb4afd89c97091988759f13088b14a573c76951894ab26f5bf. Chain 2 (Bitcoin): anchored in block 957587 (2026-07-11T16:48:26Z), 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/TCABZ1415840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0e5864ef489addc5193d32294bdb8d126ae73472e5791eff5bfe0aa9d3f7938. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/TCABZ1415841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c077b50a8211e66f4b018884b39362921298224e808246f7ad171962616509f. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/TCABZ1415847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08d44627b35b95b94d31a02b7434ce3e5158a512dce00f9af74d6bd420e21c75. Chain 2 (Bitcoin): anchored in block 957591 (2026-07-11T17:21:30Z), 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/TCABZ1415848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda07703100282640a20fd919aa31ecac89a0f743bbc088e5ecf9d81171c96632. Chain 2 (Bitcoin): anchored in block 958677 (2026-07-19T05:47:23Z), 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/TCABZ1415850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cbe281cdbc3f93f7cfcb33d85b9f396c137d8ae11431a28efda362e5b3f01cb. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/TCABZ1415851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3facb2173bc74806b597edf98f15b313639742bf6454f308005d56636a3ffaa. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/TCABZ1415852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d6a7cf692b58da0db826852c1d58870175a340f97aef7f01152b998c08f6b99. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:37:12Z), 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/TCABZ1415855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc72624145cf682d85a4c0808ff890d21e704c26d6b4a9543a1cc0fdee3336b9. Chain 2 (Bitcoin): anchored in block 957587 (2026-07-11T16:48:26Z), 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/QZ8GX1700266.
The Last Bison on Audiotree Live (Audiotree Live Version)
The Last Bison: The Wild Honey Pie Buzzsession
Sandstone - The Wild Honey Pie Buzzsession
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b5354a46d5d8e9aff2a34468ca10edbba96daf0e176ae9844fb48898feb5397. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T05:02:52Z), 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/US3DF2541019.