Cindy Kallet is an American folk singer-songwriter from New England. She currently performs solo, with Grey Larsen, and as part of the trio of Kallet, Epstein & Cicone. Her first album, Working on Win
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 0xef3af91519aade249319acd57317ff8068798bcc085066e81b8daa2842ee2665. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c1f27495-9e0c-4bef-8c96-0c6ebe46491e.json and https://artists.proofprofile.net/proofs/artist/c1f27495-9e0c-4bef-8c96-0c6ebe46491e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Fast Folk Musical Magazine (December 1985, Vol. 2, No. 10)
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 0xc859b9b6bd47ff95d65af60a73d341db644721fcc4ce028ebeaba36aeb75a43b. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USX9P0790517.
Leave The Cake In The Mailbox (Songs For Parents And Kids Growing Up)
Danze Della Valle Borbera/Danze Di Bagolino
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdccf3751f729a9d12447966eb1eb90e28133f58acebe018bdd9fab2348f5aa6e. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USHM20587076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x303687063fae78875fc34d1dfaadf77fe2c74c49d9a48244ed19e8c26a23fb46. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/USHM20587081.
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 0x2068c874b14eed626935ebcc5ddae082c8622cf956d58da1a17b40a676751194. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USX9P0790656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde99a859b0fcc9b4ab4b83e3ce3dac46b8d50284cb87691ccf4b0db448a7041f. 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/USX9P0790668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9870ae58881f4c0e06c95a373d9aecb98eaf64335a8c2b1983423bbc6a80c89. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/USX9P0790655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14ea9fb0c370cb0b5737dcda22480aeab2884d49605f72cc81e102a55cfb1d63. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QMFMF1479603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fb5bcb9cdb359f243fff89ed0fc0a037d6390863753ef7fec01dcfb4b16f2f8. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QMFMF1479615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x937165da2d13d80672691f0e2fc7e99398ff196470ac6d76f0a7a970bad18abc. 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/QMFMF1479616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3f2b74badcc91b9ee19fbfd183b40fdff2a5df0811758b1fdd19c7b52c2cc26. 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/QMFMF1479619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ca4f7a6f9c6ad54f7b7599d2149ac653e661ca64491d9762403b4bd374ca748. 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/QMFMF1479620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fbf82c4d06a9e6e9e879307039189a3a641825c28e1c318c58cdc62b54258fd. 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/QMFMF1479621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cb8b181346f5c0e4b8cb1057d80cb9641dce25052a33c400a6913d88d98c9fd. 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/QMFMF1479624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x620cccd0da00bada2f5f20b9f2ab84a0b6d7461793a25eb4a3f8b10e6281b2c0. 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/QMFMF1479627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7aab3f1ee0430775513fa1f8d1e843825bb2d801d5d9445aff72c1b66795c447. Chain 2 (Bitcoin): anchored in block 957246 (2026-07-09T01:49:50Z), 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/QMFMF1479628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7d8008cf1d634bfe28ee6f236bcd05c4e8caad0810b64dba76279f25fa3074c. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QMFMF1479630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97b4c16cad72c02e027f85c88d1cb8ab1a880d3e1bf1cb06bb51a42c8b2c93be. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/QMFMF1479617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7183962fffd6366d7cdd23576a7f570add21db310413ae53fd7d85283cfb94a. Chain 2 (Bitcoin): anchored in block 960339 (2026-07-31T03:13:37Z), 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/QMFMF1479618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77e51fbadb9690b76aa4632f5a1fd9253f9658b4427743dc53f9f815c27df48a. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/QMFMF1479622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36d6c0a5024e9eb89cfd274900b87b48d8d5b48f50dcb99605b6d5123a4c7950. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/QMFMF1479623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab71f5f80c7d1e2e6d4cbeee9a79bfd7626259da2f20a0fe9d0a9a55fceab806. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/QMFMF1479626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6e6b38db6c4299625ccccd2d3abc1c8350e9a43e6ebdb2acdb721ffacd12c59. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/QMFMF1479629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa90fe1f9a2f0f8da4c97805551d147a1f858f71fbbbd704198f0eea879ea4e99. 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/USHM20576770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd58485826518d2d134c8cd4ce44c6518991706a927a4959de08d6fd200cf16c7. 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/USHM20576772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2e4c8b507b1771d1e3005bbf87989ee07aa75ac44baad19c917082a3a19f92e. 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/USHM20576774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e609416f1de8f83c12a009b313c5f15391ac1cb0e9f79bfce21866cfdf18152. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/USHM20576778.
A Living Tradition: Selections from Folk-Legacy Records
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x100f073d6cb0d38887397a2bec1b6d611418af4e29c437b216a5c247c45b4522. 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/USX9P0791016.