The Shaggs were an American rock band formed in Fremont, New Hampshire, in 1965. They comprised the sisters Dorothy "Dot" Wiggin (vocals, lead guitar), Betty Wiggin (vocals, rhythm guitar), Helen Wigg
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 0xb26dbee5606b50dc5f9c842e0be4e4041f479e13bb8d70d11ed8ecbcc36aec50. 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/03a89b99-c3df-49da-a246-485456f91956.json and https://artists.proofprofile.net/proofs/artist/03a89b99-c3df-49da-a246-485456f91956.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 0x1f2707fdf12cf4aeb01d9018279944897a962bbf648118570d4d83e3c0503a95. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/USGCV1154216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ae933c2168118854f097e830e7be71ebe4efbef43675cd657290d19e218c096. Chain 2 (Bitcoin): anchored in block 956430 (2026-07-03T02:22:42Z), 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/USGCV1154217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe30844031652e66c44586eb08cc19fcc14aa1ed65797ba05a4e3b89aa6498985. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:28:31Z), 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/USGCV1154219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8103a8a96559692febdb5b87f8ad8708e8c1f13f43a96abb1c3a55c2944e8513. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USGCV1154220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41fa3669dc0a58ee44d75589500e67b654daf55e17ad0956dc8ccce707b97e07. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/USGCV1154221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaca5206440d3adcd9f956b4b56592d6cbc069d48db04687165fa0aed4c57dc2d. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:30:34Z), 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/USGCV1154222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67275c12047a22bce5158d2285059b9dc10b55449abe617ead7abfafa4e3ffd3. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/USGCV1154223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x499df71eb6162aaa6af1eee9c054c7f70dbe5bb04ea524ddc6066fd4387190a2. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/USGCV1154224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x899a0a1a1ac9e550532e8030382ee5a7e909d6458c1a6d22b154d7042a7939d1. Chain 2 (Bitcoin): anchored in block 956859 (2026-07-06T01:42:12Z), 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/USGCV1154225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82882e5e164b41862e691c421383282de155cf26f43518d5fd8385fe98ffb0d2. 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/USGCV1154215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x601c88b2fc320053e38f1c8e544f90b8c83b631d641ebcb77172832ed6a2c464. 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/USGCV1154218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87149d3706ecb1ccfd3472a98ee0fe418652d1312028c4263a520bb60821fcae. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/USDEA2019301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffa5e5b62dc0b172ec51f5ca3f57a7340198000a499ceb05efa72a1dcf80fc55. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USDEA2019302.