Madison Cunningham (born October 14, 1996) is an American singer, songwriter and guitarist. Rolling Stone described her music as "a new spin on West Coast folk-rock, with classical tendencies, electri
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 0xe9496414f6c974f604334a197f979d7ed37cb8471d5d28e62b3b21260c568155. 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/f3cca3c8-d771-4e7f-b140-29f85e04e815.json and https://artists.proofprofile.net/proofs/artist/f3cca3c8-d771-4e7f-b140-29f85e04e815.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Hospital (One Man Down) (feat. Remi Wolf)
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 0xc30a95d55b8a694018c9031fc77b48edbf992d78c12a773fcde7e959abac1dc1. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USUM72301150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc30a95d55b8a694018c9031fc77b48edbf992d78c12a773fcde7e959abac1dc1. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USUM72301150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cd3e65cad8a89c75496690f4efde6bf09649406621032f65957c059ca4211da. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USUM71902816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x631e1313877916f21b30c020a374c7b31ca76e4d24e4780f697a97f14936c825. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USUM71902822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57d3bcd56420c33e636e9efbddb95fff70333a069a35e62b8df9e2e864569a71. 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/USUM71902825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b1df8ba50a7c758d546eded84f79a2c7b65c77fb4cecae9f44e6ffdb616ca78. 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/USUM71902837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2fbe9c0f7a51a316089f59d4e757d7b9e27f4bddcc12f540e0258521cfc7767. 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/USUM71903235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5154bfe8fde3bde99a8263c49aef389e2134b5b88320b5d02adf0065e93145c5. 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/USUM71903236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x032da45491f8f3bf43e742313fc8be3cc32dd041de5b18d1fbed5a9eab9767cb. 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/USUM71903023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfc883a671a7070d7fe7f60e62a9c32d79689eae4038fc8e0fb937ebc2d7fc0b. 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/USUM71903024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25d1a8213dc52b5fbcb7b91f89d2fa349024e0743774b48a7b90bfc487fe9077. 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/USUM71903025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41ffb893d18477bbddaaa7e8bd353dc209218bb420878d6e250deeadb48b0ff3. 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/USUM71903027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e6e177cfd66f8dbc0fe403e96dd50c9fc8322f731a9d3a6b43604ea356b7507. 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/CAN112400297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83e97fbf8337fd9f26ef64bcadba0b5da9e5207d4a0710d3b4fed48121a5c0fc. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USUM72314167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7dc1ae991b6416ff0b92662a026b4c9c4e504895796ad65b94bc1534101e878. 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/USUM72308160.
Life According To Raechel - Spotify Single
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7726e83ec6990c051691c7fe68acb7b2fa474cd9ea7cc9ec95ea4fd9b3f5a1a7. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USUM72308159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f95ee59c7efe598ea8aa1f7284d143991ca1f92e7d78cc1d9acc53228dc39bd. 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/USUM72110318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9eeb858c95d734bb9abf6a7978917d188fdcb391c486ff653a6fd3aef09942c. 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/USUG12103865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21dd0e81eac525d8af2121902d2319b39d994e85036488f17850402c9311a4a7. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USUM72118977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9433fe52471801063aa5cd6b91be13e31228e07fc8c9d0962add2ddbd205c0bc. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USUM72117654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57fff8bfa48de4a76701e09afd012708d9ba52b80576268ff9d9bb96ae795b20. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USUM72100701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0ab0b400d30dcb1d51a6ad18805427d352ab2ddc30f490b1cc1d6e6e6982f16. 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/USUM71803073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4338023521377422687f294da5796b19423c146a1db3f577241e8c231385a7c1. 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/QM6YQ1700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95c14c429cd31fdfe0bcc9af74873a580b18e5d3fd908255a6cf43f79139ee72. 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/QM6YQ1700004.