Norma Christine Waterson (15 August 1939 – 30 January 2022) was an English singer and songwriter, best known as one of the original members of The Watersons, a celebrated English traditional folk gro
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 0xbc901f329352ced6aaeb3739592eca06697d2be4142641fca82e1c7ac1f53499. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c844f248-cea9-4eab-ac16-7d680fc7f473.json and https://artists.proofprofile.net/proofs/artist/c844f248-cea9-4eab-ac16-7d680fc7f473.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 0x5456b2a4622ddd2add4e876b1a3d54b71bb2c77d322d662e43cdcc905e1a8390. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/USRY20513424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8656156fe7a138946a9d3ec3792dc0aa56ffac08bfc03b8064405bee00af5c9. 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/USRY20513426.
There Ain't No Sweet Man That's Worth...
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb201a0ee2162bbaffd80ffe242b4327aa79d0b58fe085c36e38d781eaebc3d6. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T05:29:45Z), 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/USRY20513428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22dde29340982afa8604e112c4b64484eb3355cf77e5ef0a9cffc862f2379299. 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/GBEEJ1800433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9154796a5c205270ee79cda4b9bf889df96078d4a61a84e2b46a3b2a9135fd88. 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/GBEEJ1800436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74103d849c0a67f45282a4bd79e1f38dc71ed095dc588bf982227bd0867bdd88. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBEEJ1800435.
There Ain't No Sweet Man That's Worth the Salt of My Tears
Folk Festival: A Celebration of Music Recorded at the Sidmouth International Festival
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25cd1afec2dfedb0e98b1b94b22efc0798bd1ed22b66d4e3ea8ee93878842eb5. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GB7VZ1200002.
Joy of Living – a Tribute to Ewan Maccoll
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fb5b3b3ba344980adf855018f84bdafafb02a5f4552746bbf4acf38b1f47d1b. 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/GBCEJ1500802.