O'Brother is an American rock band from Atlanta, Georgia. History After releasing their debut EP, In Comparison to Me, in 2006, Aaron Wamack and Tanner Merritt joined the band in 2008. A second EP,
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 0x79ffd46e19e7b57eb27e3ee4bd4766985619a4792afe1a7e076a33332a639d54. 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/7e1b4c9e-46a9-4a1e-8c4b-cc9d3392150b.json and https://artists.proofprofile.net/proofs/artist/7e1b4c9e-46a9-4a1e-8c4b-cc9d3392150b.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 0x754c7845d6eb372767976ba38ca67318fb24869ddd28958d5f8172aa9121571a. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/USQY50921765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x193617a01360795ad2982c0f97055cb41669b20cc34e945b1f6f722f998443cf. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T23:43:12Z), 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/USQY50921768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x527ae073cde8810b0086a747e35840ee370c82afd7c9d05920710107f65fc8e8. 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/US72W1110878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5597262ea8977545dd82e6ff086bef973fdd753aeea0a5ffb2699a3c15537cad. 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/US72W1110880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68ea2d8365db2a4df58343440765e913914b66406026a3896dda3e887c19b4df. 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/US72W1110881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac4531e02ca4fb4096b8c74eacdb7393b25cc1fa4b1f14d7fe18ef5021284e3d. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/US72W1110882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aa0c3a1ba4dd7828e80e90536bd31044660ca7587aad692b7e4188513198cb7. 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/US72W1110883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc06a31dbc76dde12665360b84b54e1c60a2a89c05a6fc9ee0fbc9555adc4ae37. 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/US72W1110885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x607b10ff59e0ab0c284a56e773cc2f72602468c183dbc21fce0e0a32f44bcdff. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T07:09:52Z), 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/US72W1110887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb03cfbb389f0474641f5598258cc43d497fc96e72d278c1e10340c4f86b6582. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/US72W1511428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04c5021a047f154e09026ba160b16e2779e6183b8378d30ab92a005eec0eea17. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/US72W1511429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4c4afd5d4cb46b144fbd23d703711ba930a58b7e296cbce4e6236113b68cc87. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T22:15:52Z), 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/US72W1511431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6af64bf56048763d5cc1f0d1c8a7149adabf7edaffdb4dea148a61ecbf25d90. 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/US72W1511432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22ce4bb503b67af2661b23eba4ab014f63a482268f90f407753137927b239cbc. 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/US72W1511433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x185febc3448ac9d7b0a4547870a13b7229c70f1ddc16def323ca4d4d996d692c. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/US72W1511434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x547785f61c6d89939baab41e33a37351a77aaea1017a48ca27b3de35624f630e. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:23:26Z), 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/US72W1511435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb030948da6727aced029bde2ba2cf1acd15956236af70087767e861292c206c5. Chain 2 (Bitcoin): anchored in block 958653 (2026-07-19T03:54:23Z), 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/US72W1511436.
O'Brother on Audiotree Live (Session #3)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1531b91d484b88f77ed956c584acbe21875420020136fb80aeaa60af6cf6b512. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/QZHZ32000537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26a8ca45e6d7824987f030a7e9e0d53c23c838ca50fc3a39a72e55f01ec4a1cb. Chain 2 (Bitcoin): anchored in block 956748 (2026-07-05T05:55:59Z), 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/QZHZ32000538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d2d47f0a19d454cfa26e7a9cdb2db6afb30df1db0da1a6620e0ddda4b82cf9a. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/QZHZ32000539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb949f1f0485d8940c971dcbb7e2bf210264b78be08ac9f9e1f32d30cdae1ded. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:38:52Z), 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/QZHZ32000540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12595a3c7b0098004b774f277d042797a833f4e387e0f1d9aae57f4a08379a87. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZHZ32000541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42e354258a3362f9dba020d179446c3cc0aac9131f3516c4ee5603a07d17dc5c. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T13:22:35Z), 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/QZHZ32000542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf91c23ad55323da981703297343c52096f29ff94ee1ef32cd924ca81254e4ff9. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/QZHZ32000545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ceeea1e40593276660f04f3aa357bcad18a612a4e5125e7eb01e70ae79fea5f. 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/BRRGE2200131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ceeea1e40593276660f04f3aa357bcad18a612a4e5125e7eb01e70ae79fea5f. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/BRRGE2200131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ceeea1e40593276660f04f3aa357bcad18a612a4e5125e7eb01e70ae79fea5f. 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/BRRGE2200131.