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 0x3369386700b34ddb8fb131709bdca8458d49b3fc2ae259dcf9e3c454839023c1. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/565ca118-35a2-487f-8fc6-627cad8fd375.json and https://artists.proofprofile.net/proofs/artist/565ca118-35a2-487f-8fc6-627cad8fd375.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Bands Under the Radar, Vol. 12: Americana for Hipsters II
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 0xe7c54fe55804cbf322cd1feda2ccf2b6baea33ffcc0eb0842786153f5308bf4f. 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/TCACA1479541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc610e2359341181724448ba82ce01df0b983a60cfe56c569c50e2c42643a9b4c. 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/TCACB1400646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a9359f36c18993f7b30131d59433d94f14b929faaf9f95bd39a6ecec44e3ee5. 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/TCACB1400647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecbc07d876971b4a0c08bcc26afa0bf2ae77d096692788d9b19b96e89059a847. 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/TCACB1400649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x542b65f0094c22632596ef17e9d4f0cdb3abeafc7005ec8b93b8687706542c62. 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/TCACB1400650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ecd42a7703e6601f8397e29909c7fab06db01cfd2e6c55e19f08e28591418a2. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/TCACB1400667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b8ebebc58922728042cd231709f26c2a4451ed4182b269269f7607ae84816f3. 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/TCACB1400676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc2d2878f2f4daf87204cc99288fc041821568f0ed61379c7a69430db80185e9. 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/TCACB1400706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02e5e0ec14101ee1a63f85535e641278b0d8d18ad998e0316de46b1087cca782. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/TCACB1400720.
Live Archives - Volume 2, 3/27/15 - Kansas City, MO
Live Archives - Volume 1, 8/16/15 - Taos, NM
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06c1f59470f3ef762dba51c4e7333d258bfe0d27dacf7de4365423f5001a314a. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QMCTG1300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2283bac9618ca80cd1fe7d7ee07b51946e1526a9a0192b60601a41d71b43e0dd. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/QMCTG1300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3b6c1ce75bf8c1120ceb6bc359ba1642129ef7fe6616ec29150d12532e2542e. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/QMCTG1300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb412ea7a3f75b2e56c040e1c67597bab535c9aba78a65086f96baba71cc7afc3. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/QMCTG1300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3e7f2b148ce4bb08564d84d4e82c77cc8e999682c713b13e2a3105db458d251. 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/QMCTG1300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafd8042c6662c3791a6230bece8cb13192d83f8fce19918a74c6e329b6bb35ce. 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/QMCTG1300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bb5e7a9a8df403b0716613eb69ea2ddc92be0708d7f93907618f5e458242746. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/QMCTG1300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2103984e49b530dd284f7e3b9e999466a3548f6e26e0035ce90ec9ac4ebc71f8. 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/QMCTG1300009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9d319a75895e4947ebe66c29d4fdaa52c38cf71cb70ec45ee8c6e01d56e5b17. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/QMCTG1300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe2c4e5ec18e8be4ef77f58fcb9868ac3663c1e96fa239f38153be7d9ac3a46e. 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/QMCTG1300012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61cdd8dbdfbf603684378b1156d30e7c0189e8dc52d228e157868d5e64303c88. 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/USA2P1136848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e8f51275a440a9c8c2b2c5cad06f593b8fb3860546f01ff1acde05e4caa3d79. 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/USA2P1136854.
The Far West - Jam in the Van (Live Session, Torrance, CA 2015)