Mary Rodgers (January 11, 1931 – June 26, 2014) was an American composer, screenwriter, and author. She wrote the 1972 novel Freaky Friday, which served as the basis of a 1976 film starring Jodie Fost
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 0x1eee8135ab1df63b1d008cc7b21db20241123196aa4a731dc3a305151d502e8b. Chain 2 (Bitcoin): anchored in block 953699 (2026-06-14T22:00:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6bc41852-ab8d-412c-ac99-c5c0f3235915.json and https://artists.proofprofile.net/proofs/artist/6bc41852-ab8d-412c-ac99-c5c0f3235915.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Once Upon A Mattress (1959 Original Broadway Cast Recording)
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 0xd2ead4fe609c505f3bd9934b80a8d3abc73129040909d31de7603a0b21bf0c05. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T16:15:11Z), 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/USMC15946262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa531205cd7b822ee3eac73f99240a16c1493f63f910105fcf5f088af32dca29f. 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/USMC15946263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc54d79d0dfca17d482680cc99d337c89fa0658222e76f2f68c02bbf7a1551336. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/USMC15946264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d9ee11332fb47f00ab3f2b5c5a9f60966002c185d858af19128a8282fde3c14. 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/USMC15946265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc3d4ffa771ed39b6c42c92eafa9026eadfca8befc1d2af8674fafdfb585e24e. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/USMC15946267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaac33745d11eedb211168f036adc35b29fd0af6b71a7955e62bf661a9b6a2d7b. Chain 2 (Bitcoin): anchored in block 958947 (2026-07-21T00:53:33Z), 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/USMC15946268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x004075628bc4ac9e46e7ecf1b6fc5816095348308c42c3b28ccc4baedbeaaab7. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USMC15946270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32a6bcdaa5402a8e4d9512f01ba9eb17a49c9bd15d100274ad6f594152f47b79. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/USMC15946269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55f7d96f6275696a6558624e0c296290320244faf7d2128fda5d6bedc94124be. 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/USMC15946271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e76ddfc048108ac820634bcce5052226ab3bede7dc1731c5ae4c25107541b31. 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/USMC15946274.
Once Upon a Mattress (The 2024 Broadway Cast Recording)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fc84373158422806f117f3fd4b3217f13775789548cdc882597429d1c942b9c. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QZZPP2502101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a95097d687ce4df2c8608601e20ac450e6e00dd46b544147274f416b2167ccc. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QZZPP2502102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3394125873548e7f41e11ef0ee37f6a49eaf350dcf8c00e75158b961a4fc78d. Chain 2 (Bitcoin): anchored in block 957752 (2026-07-12T20:53:32Z), 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/QZZPP2502104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x024f7d7abae14c745a4428220624fbf946cb10614cacd5c8bbad26c1cacf77fd. Chain 2 (Bitcoin): anchored in block 956430 (2026-07-03T02:22:42Z), 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/QZZPP2502105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8086fa2a655947620dd5a38fecfac630e3aa2c0c4daa03066e766014b6b804c2. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/QZZPP2502106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa430003b4e75afcedfdc308e599aefa67a652ee55821ffc515ca6911815727cd. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QZZPP2502108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94e77c4dfab28676895a15c7634aa8749dff413bbdc81e015cb5a37ad9ff7cba. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/QZZPP2502109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c0b0a6f22208129df252e78bee6ae06696f23c929fc9e898ff877bf79247a12. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QZZPP2502110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe1b478989f1362e1ce1339e99732b5b5e81f8fdf0e04cbba6a76cf639f97ea8. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/QZZPP2502111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f3302cb2c015ee36b46942e5c4879acecb01f9b6ee2eb7bd8f80eccde247da7. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QZZPP2502112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aee882a46d9c8aaf8e468f9ddbef632e36a223300a204f7176e5e2f9e449363. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZZPP2502113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0687fd265c85bf5f8584725b42f6b06c4ed2d702ec12bc978222d9a39dfa4fc. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QZZPP2502114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb5b798531864e43c6271cda3f5950b3c4d4968f78df360d48a6ba9af3af4e92. 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/QZZPP2502115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5bad706900a330d0defbc4df4e1e49fe0479ca593d4d4a2b60ba9bec3777784. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T02:31:22Z), 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/QZZPP2502116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e0a6e0b52c6ea01102fe51e6fe60bdd41ec4044d4082f0526008488aaffb618. 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/QZZPP2502117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba64550d1ee7340281eaf27079aade75c287138bfbc3d5e2d6d48d7f4b960977. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/QZZPP2502118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aa24cc938761cba63b189ea4e131642cc4f9bdce0e3026d02f4c2a2b300c45c. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/QZZPP2502119.
The Marvelous Mrs. Maisel: Season 5 (Music From The Prime Original Series)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45d8c665c0c777ec1de02e0e9c4f3ce81cbf5b665ff5cc896dd120de59a1734c. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/USQX92302492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cd9c7017b67be246b8fb03181d5ad2e26a272c6c2075e647254250f93634963. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/USSM10410736.