Maggie Sansone (b. 1949) was a hammered dulcimer player and recording artist from Miami, Florida. Biography Sansone started recording her music in 1984. Since then, she has made over a dozen record
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 0x62819c17ab85280b5dbf9a1f30fcb246f1793fa5b40c10bae05d8962169ecd5a. 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/bfa80e20-e0bb-4113-a903-c758576ae5ef.json and https://artists.proofprofile.net/proofs/artist/bfa80e20-e0bb-4113-a903-c758576ae5ef.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 0x4fb8a0b3cf6ebd8062e21b10212808d03ba9934bb6770fe63ca675aa0c966082. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/USMM70410511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8215755967b316f6b0a93927a86475445cf8af766d64ba2a86f7d9685ab4c0c9. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USMM70410801.
Gloucestershire Wassail / Tomorrow Will Be My Dancing Day / The Sussex Carol
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x371cdcc43065ee9197f99f64d8d63687185ad5935c3bd57063fc13c2c115e007. 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/USMM70410802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x281b8d08998b8c59a77ee44e52fefdb61a4351f1fc1c46186ef101ec6d815793. 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/USMM70410803.
O Bethlehem / Bethlehem's Stall / A Maiden Was Adoring God, The Lord / Great Gentlefolk, Hold and Bethink You
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9bd6441013a249326e5e62426cf3b0f39edc3c595ecaa0ef1e1db7ad4aeb655. 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/USMM70410804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c18599d0eca195466ee63c93d42cabaee459f8671103968a0bf7eb25a3b1637. Chain 2 (Bitcoin): anchored in block 958407 (2026-07-17T12:08:48Z), 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/USMM70410805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7f36068a03b28d00db663f26520bf8f96f5731ec4e03a0fcedd06edd7c786ee. 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/USMM70606108.
Nowell, Nowell: Tidings True / Riu, Riu, Chiu
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd896ee06261f372e6b74a27a8c1e6b7a7cceee36bf6bb8eef5fa521d56c7904f. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/USMM70607108.
I Must Go Gather Comfort / There Was a Maiden so Lovely / When Judah's Loyal Soul Alone
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfec7bd075f3e548b1986c046f93beded6161ea9b30ebb88d8b1a8745e140e513. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/USMM70410808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa42f2afb43b371b99e37ed00035ccd8234b3deecdf1176450392b9faaf75d01d. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T11:09:46Z), 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/USMM70410809.
Whenas the Rose of Jericho / A Year Begins of Joy and Grace / To Us Alittle Child Is Born
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3a1d60ef32de378d575adb463b847fd0b0220de50c5cb11b668f9d62be19d5b. 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/USMM70610108.
The Donkey's Carol / The Friendly Beasts
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2af717cc2fbcba006321cce1f21558c5bb7234693520b4c9412a4e7a230d66ee. 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/USMM70410811.
Here Betwixt Ass and Oxen Mild / The Golden Carol
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x745764a102d464d6e2b421863f20115a28534c4b651c09766c4281bdebc0dce9. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USMM70410812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe042705b4e3e052decec463da1d318a4638fc2a0d1a16484a2423a407ef61623. 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/USMM70410813.
The Flower Among Us All - Johnny Armstrong
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bff5a7339e08fea9d7bd8b73d36cbf31c5d9e1aa5631eb2c6dcf7f43b87ec7d. Chain 2 (Bitcoin): anchored in block 958510 (2026-07-18T06:38:22Z), 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/USMM70411007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x483397510cfaf1d52b1df0e342f9adcc50c75a0b080efdd052f984c9796aad90. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/USMM70605108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc38d38426990cc98ca397db4f5d016c0f34bb67cf830b626a16ee37a9f447f4. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/USMM70410807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc34f1062335429058d956753f0416a27e38a697dee18e822fb742f627b6bfa87. Chain 2 (Bitcoin): anchored in block 959073 (2026-07-21T23:25:37Z), 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/USMM70410810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92806adb990664d8a87d22df64d0dc0582d70dfd62b8cd15ad81fd3ea1a29730. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/USMM70410911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4938f354b309ad87bb36f1727996230ac47d5665800c3359c51c27846d07c1df. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:27:21Z), 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/USMM70410617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x585c53361b38468cf8f56eee2366f93d1cd2bfb2056948cb7bfaf879b169e536. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USMM70410601.
A Celtic Fair: Traditional & Innovative Music for a Festive Gathering
Wind Drift - Celtic grooves, mystic moods
Putumayo Kids Presents Instrumental Dreamland
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2fd6bbc338aa42d6ae5adfbd11066156907ab4414fa2e2b71bed8785e3efabb. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/US6QR1200013.