Labradford is an American post-rock group founded in 1992 in Richmond, Virginia.Strong, Martin C. (2003) "Labradford" in The Great Indie Discography, Canongate, , p. 827 They have released six full al
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 0x269ca84c7e78f34217fa8f2cbbd360b5d0b101ceb363c2cb6a517b5d24ead78b. 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/36fcd85f-9ef6-47d6-812f-f291ae6351d4.json and https://artists.proofprofile.net/proofs/artist/36fcd85f-9ef6-47d6-812f-f291ae6351d4.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 0x31d19c9816dde47c5c0456d28a826f15596a7054b900a85f91ee068120491ca8. 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/USI4R0401536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf39e9c3193ec6520f42bcf9420df02f19fdcfc32646010ceb87e5c3b1d29e23b. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/USI4R0401540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddb51d6a640bf0dfec368905db4df99385c8d25580a8cde8c9a6c4bce62dbea1. 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/USI4R0401585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31d21a273178613d4d4b00ef8e30baf959aa83154df8ee7fa86928efa3f3b6d6. 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/GBAJH0500522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d91d9c5bc8a046c79d52aa48a21a1dad3a7a2f022bd9ba5102cf7bf200adf14. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-22T00:45:45Z), 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/GBAJH0500523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aeaf6268bd990d9ddffd387c325cfaf01a8f02bd0e5834b6583cc25a98a9c69. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/USI4R0402106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05430000a67668a866be2dea9f1f56caf13ed83d6ddea18f431013b9eb77b6d1. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/USI4R0402107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70155bc92e47436a9dee8e95a78e5631446a1ffe088dba8bda73bc740ca1d2d1. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/USI4R0402108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa6210f1ec775807ec6e7d4ed5eee4d23e458686fda8fc523369e50ef4908072. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T15:31:18Z), 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/USI4R0402109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe26825ced35a07a8a898bd5ecb8a74d93647664dc074bd8a07070b80f6f3bd82. 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/GBAJH9700310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcddbb8e512a301e5e59a7e01d98bc986d8775a0e66c9b0e8a21b4efbf587c86b. Chain 2 (Bitcoin): anchored in block 958087 (2026-07-15T02:56:49Z), 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/GBAJH9700311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5a6151700e75ccf5805b38c21020aefdd5a86ffa8da5ecc9a9713741d85a68a. 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/GBAJH9700312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc37c5da089e302f34a8576369273e7126cb048624c52f2cb2971269fcb044391. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/GBAJH9700313.
By Chris Johnston, Craig Markva, Jamie Evans,
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bf377a1c4d60dd753e5edf6d7dd89a55873ae560348b4a0e9803657189ff830. Chain 2 (Bitcoin): anchored in block 957741 (2026-07-12T18:30:59Z), 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/USI4R0401824.
Recorded and Mixed at Sound of Music, Richmond, Va.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e79fb5d7e5d35214daef9756171bd3911ac0a45db41f7bfab62cf5162fc61c1. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T17:16:16Z), 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/GBAJH9900019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6afcc4547fcc1992d61ff12c97f80986d57c4e16a5d99a7b0b6b7b2d43fd1aac. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/GBAJH0000389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09f6bb0e73772435a97370ee38abc37e61825bc4e68cb61a44f1aef1545e13fd. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:46:55Z), 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/GBAJH0000391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dc276776330e997b2d74b0bf58d96a9a1831c0db0613670b47a2b099adf5651. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/USI4R0401891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32ecbf28f3c607e916d1627bda18bfa4063ea69342d0bbd1ea2b86093ee087ce. 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/USI4R0401893.