Birdtalker is an American Indie folk / Americana quintet from Nashville, Tennessee. They have released 3 full-length albums and 3 EP's. Husband and wife, Zack and Dani Green, formed Birdtalker in 2012
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 0x640462041051f22c20adf6bbfefcd79bdce5db19a022bbf7d95e01f2dd908706. 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/824a555f-5f74-49eb-a3b2-6f1622556cbd.json and https://artists.proofprofile.net/proofs/artist/824a555f-5f74-49eb-a3b2-6f1622556cbd.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 0x5353f39b130b599869a55c3d49a569ae0394196e942957a03ddf54cd7bba43ba. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/TCACQ1631515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78a8ed1dc2e87f7947b0561a50dbd8f461cd6373bc0e3cb6f4eb15b9b1a1109e. Chain 2 (Bitcoin): anchored in block 959002 (2026-07-21T11:47:29Z), 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/TCACQ1631516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad1c958c26fa39a5259445505dfed4fa5339e7ed9d384ee5f54ad26ed712a0b6. 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/TCACQ1631518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18478f5c4f8829c3b2937e6aea648c0751bc40db9056768787774f7119a81207. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/TCADG1793824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37c35d7726e26b8b999856df7774f29678c724b621d71bb8f4c61f90c7fd713a. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:35:13Z), 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/TCADN1869211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7022145c02ca161f69bd57444875423e8139ebb987aad7da94cc09852bb44457. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/TCADP1829169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca19d0a7ff75ac12b58674f838a097c5f402ed43ecdb4b12c172584fb47bde21. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/TCAED1994879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42291bbdd9e695afec1386bc10088546f0cb42028f118c26808efc15216e1a7f. 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/QZ8GX1701266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91b1a6e70f5133c18cc4a0bdc74fa3e9166ddc58a07e1cb0065660f26930fa05. 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/QZ8GX1701261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf070ce4a1bbdf2d6e0af8b2049529348eb8654aa052e17119adc76be4f4548e. 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/QZ8GX1701262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89bf87d33a348625e627ef819d6e8d68d84c30d5684dcdd5f7ea547bd354b6f7. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/QZ8GX1701264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dbc83f008d1988599bb86aa42dcd7698363c01631d11c98f0384d5401404422. 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/QZ8GX1701265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2b13cc143c86854e7930e01286e45d97b73c74ce166cbc4079f6151051540d6. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZ8GX1701267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0838091bc4c6f4f0fff785b9f1c294535b49143dc725e07796196142010e48d0. 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/QZ8GX1701268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e87be1eb8f04f98602c599b22188e32391f0068c521fea9d4533e6dd32eec35. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/QZ8GX1701270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bf9238ff53f9ce4012afcd8d9417d70b6367408de0cf36c5377a37f71612f96. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/TCAGK2228794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd44f1a6955244e1cf40f7e38258c0677b90a01de2b28bdab872058d4a35b4d3c. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/TCAGM2206847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80e43d9eae8a7f08809037753df631e586498765091971ce62236893d7a28ef9. 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/TCAHA2339188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55c728a217d42428ff59c507c7c7820b0b125b5a99e1af9cc52eef48cf0549f0. 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/TCAHE2335991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8177ebde982ae560947d7519866c9961116368a09f2f3a1f71ee34fc41dce12. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/TCAHR2391801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabe7602a02a663161c8e080ebc3dd648f5dac83483421a7dcff2eb316860fda9. 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/TCAHR2391810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a7b05096aa9ff066b5f1540d036e58537088badbfb1fc5673b7563fe57f908b. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T02:12:06Z), 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/TCAHW2416377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7712db102079cfb5c6efeb8d1c4b9e2a08b3417ed9077050fdad9e09b5a3674d. 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/TCAIA2463403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26d47966ab909e0a7dec50f6b21e796fae0e54e1eb8e1f25af6bf25e00b00090. 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/TCAID2481373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9f95825253820f59d6a76413c6f6625b9979a64e4a387e8bf70f80475839bb8. 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/TCAIM2427780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64338f9ed82f2df338bc4ba7f20de17dbce1dafd42edbd680ea76986421be5e9. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T00:15:24Z), 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/TCAIQ2482282.