The Watson Twins are an Americana band based in Nashville, TN formed by identical twin sisters Chandra and Leigh Watson. Biography Chandra and Leigh were born on March 17, 1975, in Tulsa, Oklahoma an
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 0xb59b3cfdefa6077fc8f6353e8a5c44aec7b0bbcfaf3fb1132f6cb1bfd164ffcb. 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/1674eb02-4757-4cef-86ee-572be6d74778.json and https://artists.proofprofile.net/proofs/artist/1674eb02-4757-4cef-86ee-572be6d74778.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 0x533a9674294f8647ef5a735e38c78469738b50ef2b209b29cecf2c79c6076ace. 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/USVG20802009.
Live At Fingerprints (Live At Fingerprints, Long Beach, CA / June 29, 2008)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6d30d0a2f8c12cdb9ce03f68ad8483cf6132e1124107408f32be81f321da979. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:52:46Z), 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/QZCTT1800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1569400f08029ee0a824a2ab87e8024af67b07004ee00441e7a3bd6595eb2452. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T01:51:59Z), 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/QZCTT2200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f7422da0248203fb562b153bd8da08067e5b84d08eed437364ef6b27bce46d7. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/US58B0500801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x049de0c7300b41e91d11053eb8942f2a26388c8ec31040b5617cdc126886758b. 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/US58B0500802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13d6e05f02c437656ed2c6114d2bb809cbbaad30fd580150f22c7984026ed89d. 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/US58B0500803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c8ae4fcb85f2419cfefc9584ba3b4d924c6463fe4427ab81e7de32f1ea2152e. 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/US58B0500804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x930960b0a5e38e45842e4dba8c41bb23f02ab6c6502e418c47d69daac93ea408. 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/US58B0500805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dc25e6e4a6d5a4de687caffe3195dc73d6e51c3c57b783d3f965475658339cf. 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/US58B0500806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51260322b9e0cb2dfc3ed07a03ac3f5a9ae21428c40da7e0e1f2c62d29934f8f. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/US58B0500807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7fbb5e886aabb165b1f1d7ba1662282f7c7d2f19877608535b4b240d7e73667. 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/US58B0500808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec19b4d054ac045de54edde1e7cdd49a469eb11e93d95ef14d186e1365c1ac47. 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/US58B0500809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb48bd1af31d254dce713698f61c52194afee1f9799a24950584f974137344366. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/US58B0500812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51260322b9e0cb2dfc3ed07a03ac3f5a9ae21428c40da7e0e1f2c62d29934f8f. 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/US58B0500807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf4ae48329ce2a600ae848aa340eec235410182a5db98daac4545b93818fe370. Chain 2 (Bitcoin): anchored in block 959134 (2026-07-22T13:34:27Z), 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/US58B0500811.
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 0x6b1c644c228869ed2fe6090a667beb99c5a8aa0ae0ef9dec2e9322d62709c33f. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/US58B0500810.