Dorothy Loudon (September 17, 1925 – November 15, 2003)Dorothy Loudon Foundation was an American actress and singer. She won the Tony Award for Best Lead Actress in a Musical in 1977 for her performan
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 0x5dc669d95b177d432f1f92ff04e09c82423eef8fb5f7188d93e0c9533d75a1f9. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6f757a6f-47b8-40cc-bd2b-45d5a09ac80a.json and https://artists.proofprofile.net/proofs/artist/6f757a6f-47b8-40cc-bd2b-45d5a09ac80a.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 0x60257c15d6e7a388419c9d878f2523629d7d9b73ba46767ba40fb9a748c56779. 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/USKO10409706.
Annie (Original Broadway Cast Recording)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5171b5e069dbb9a93dc11ce3b2f0b986029d14be250365321e6a8ef380db299f. 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/USSM10410820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x922bb2e5ccf0c415ec14252249c1f1be6096acea75b525cc70fad12656d231c7. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USSM10410821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b218163bf0e9c4e6a107193d2c355ab405f6cab63847b38afd1f2d4777d73c6. 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/USSM10410822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1687b0de399e2d06af74e297e0514caf992b3bf545521bdbed4ab6bbfc3d026. 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/USSM10410823.
Annie: We'd Like to Thank You, Herbert Hoover
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cd7b654c50a473b0abe4dde922631dd3031e8cdb93693e2269544153f82225e. 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/USSM10410824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2ec3cc0b58c2e29668672d9065a202d0fb082bb037cd5e9f80360c5a021e8dc. 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/USSM10410825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x383635fdfad658419609743b6e981ff9b270d47d2a524de1c8a4e50de294aa49. 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/USSM10410826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9be3c867e2e0a6e061d1132d93822784aaaa40a15f255cc125e447c1a0b9f652. 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/USSM10410827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a2e1b0d530d50ffef9593fdc8ab798f81779515b92f68b8d0ed0c04584b8be1. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USSM10410828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0eb23035003ebc3d85db327dc09f16f36a53756883a357537685d8f868ec01cf. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USSM10410829.
Annie: You're Never Fully Dressed Without a Smile
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc7c320bb7b08a250ff94c2a01cea40abddd17d9405b7f317e4d7336499ede2e. 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/USSM10410830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c8f41c9262ed2ea3af4a9485e23972cd3250d3ac4021b7900de036a540a93d2. 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/USSM10410831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefa2d2888b7e045ef0285682e841221ddc4b5db10d8e987f4ab7540f16fd3cff. 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/USSM10410832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x427bdc3dbe92f5559805dff07232591d0f7d247f0175a2bdcb969ee4b0d50ca4. 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/USSM10410833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f5cc2a329d9e852a2dfb07e2a94b2cda17800cea4fc9a69a06e8bd680a6962e. 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/USSM10410834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5d79a587b9bee488de1ed44934d3e231c383aa4d78d7cb1dcbdd1635b23a551. 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/USSM10410835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6648a6cbc0e4d41c4d4a112409e9b0ed512c5a4c94c42bc61f6236f8233a037e. 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/USSM17200353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf046d3337c796dcfda98c2228c04b326a6749c279e80d59e2ea7e1aefb2e6c3. 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/USSM17200354.
Introductory Remarks / We Got Annie (Bonus Track)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cb09b940bd2e8913cced43c8f6111afadf3dfff9fac5f1d06db15068d60ac77. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USSM17200355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b01e888ec14dfb9537322364d273af80e49d4e55621049eb7865a96dfdab9f1. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USSM17200356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a121b1e6809c98de1c8f9d0d2bede6ff3c6ffd4ab7192fc1c56731d52899fc3. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USSM17200357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfe6d4770c1723021fe649c9dc4f84e6e161189482f1f6d6f56d72d21e883f54. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USSM17200359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6318da200857febd7936db7a1fe0fe9a15e967728ec5da86922b8fe02be08df0. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USSM17200360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x705a4cbbba07731f8f5603e161043c87af23586ecedf8df26023e8103ea1eece. 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/USSM17200361.
Introductory Remarks / I've Never Been So Happy (Bonus Track)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ba8987389d2a56c0236e3c53cbdbf4b9c93f08906f5dd6f56816629bae8228f. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USSM16200984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57e1ffa1f11ddb6943dabc995e1aa5897d319ff8acc3df9f33a623e176c57173. 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/USSM17200362.
There's No Business Like Show Business (From "From Annie Get Your Gun")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02216aa93e0cdf08c13977c8ed736308ecf90b36942aebf987029a0a011f6751. 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/DEXO52468146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xced917b654eb6b22dcfef258ef55a9cf6c3fb660ad7fc9d7ff3052e3a6603ba2. 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/USSM10016758.
When You Got It, Flaunt It (From "The Producers")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80a8b134184ad863edd6ef4870109e21a38e32825f0d8475b26dcc23ea8ba576. 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/USSM10506162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3797623af3a45b11a5cba06674ea8c3c3203e14c5e5811c70080661d9d4d1e8c. 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/USAR10401040.
Sondheim: A Celebration at Carnegie Hall (Concert Cast Recording (1992))
Original Broadway Cast of Sweeney Todd: The Demon Barber of Fleet Street
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x140e1a9226a8d00f2cc4c97b1a906811f9d880350aa8311d8a9bb3449f13be21. 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/USBC10100832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef0eefbded497f109cdd57130266a09234be0a20246176b7c13c0c7346ded724. 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/USBC10100833.
Loveland (From "Follies") / Getting Married Today (From "Company")
Sondheim: A Celebration at Carnegie Hall Ensemble (1992)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68863482caa572b5745c69ef331b6e4ada1f1325ca9f16520928cbdc7f4bcd5a. 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/USBC19200631.
Green Finch and Linnet Bird (From "Sweeney Todd: The Demon Barber of Fleet Street")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2074ed5da300ca0b1257980cfcaac7571b0d94cd13a458adb73b02d5ab8f114c. 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/USBC19200624.
Someone Is Waiting (From "Company") / Symphonic Sondheim: Barcelona (From "Company")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2b2117d64f3f6ff2ff02109a8f2981d7c9a5455125d3d21f9cbd099acc832d2. 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/USBC19200633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x943d9ccee1c115a58901803e5367f919a0c5c8d3884177ce585b6d796067b6d0. 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/USBC19200626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa87ac421cb5fd88759f243f96d44f877214108b31f4c71e730c0d1d2dc5dbb3c. Chain 2 (Bitcoin): anchored in block 957011 (2026-07-07T08:25:35Z), 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/USBC10100381.
Good Thing Going (From "Merrily We Roll Along")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfed65e321d33eb76cd8bbcaa00e438b0d5467da10c5cf91d4165790c55e4adb3. 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/USBC19200617.
Not a Day Goes By (From "Merrily We Roll Along") - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07588733a1fe870a369dee4bffa4f938c23cb24f383563f9e5ebf63e35f20f5a. 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/USBC19200275.
Our Time (From "Merrily We Roll Along") / Children Will Listen (From "Into the Woods")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73b8072bf5b8366d17a89db5e634316402d7d3bdaf7347a6744e65e2dd8d61ce. 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/USBC19200158.
Anyone Can Whistle (From "Anyone Can Whistle")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3831ef1968b4aa00506ab15932d7f9d49ab35e086c4b88b771ee68e8b56cb29. 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/USBC19200618.
Sunday (From "Sunday in the Park with George")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd57a30a5698f1a704d414b1bbbd3f4596f0f6241216967a2a7b6b5079d721a95. 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/USBC19200630.
Losing My Mind (From "Follies") / You Could Drive a Person Crazy (From "Company")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55e9c36c0516c8a5808dc0cfee5fe4b5431875624abccb7cd78b71038a872168. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USBC19200634.
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 0x4d96d4516148c36f23f6440353af0159cd0eda294032f8f05abcf27785367b94. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/USC4R2220200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c31e813c70746859d4a14dde0c259f7d92f03ec8c84eedcd4bd3ba94f68db6a. 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/USC4R2220204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d32d1d5a193cc06cf63d8642a7bf034b076774dfc238127c1c3409920319c10. 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/USC4R2220208.
Out There - From "The Hunchback Of Notre Dame"
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1059e733ea873a0d626a4ae4b2ff565b96efc2c8ccc65c0fa6023d8cea1b4d39. Chain 2 (Bitcoin): anchored in block 960288 (2026-07-30T17:41:38Z), 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/USC4R2220205.
Ballroom (Original Broadway Cast Recording)
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf998e7e2187b1f5e6559485f9d5ce27b691497ace87680b080167fb20ac1856. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USSM10113268.
Ballroom: A Terrific Band and a Real Nice Crowd
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04137fb7f57488790a36f5de8527f2d56ff116658a5fddd0876c2da28096c873. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/USSM10113257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bdef40d3b3abb37a3a5a2699bb2e9db8982107b5cea6da5d7a1432b32de64ce. 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/GBLPF0275255.
The Party's Over: Broadway Sings the Blues
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5abe6930a36ac647f6e787cfc9f8a826db170c6bc9619c81378b7dfe7671a19f. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/USSM19304029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x357371c4a7fedf93ed39ba9a0c8dad7c35c95b5f946c5c56c50f4e7383169067. 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/USSM19304031.
Fig Leaves Are Falling (Original Broadway Cast Demo Recording)
Cabaret Christmas - Barbara Cook, Billy Strich, Julie Wilson, Kt Sullivan, Others
Great Cabaret Performances - Diamond Anniversary