Damn Yankees is a 1955 musical comedy with a book by George Abbott and Douglass Wallop, music and lyrics by Richard Adler and Jerry Ross. The story is a modern retelling of the Faust legend set durin
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 0x714971acd0155472c5fee6049ef3eda3a42508e7db03bdbdcdbcc2eef8059a29. 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/e05b73ec-b3f3-45d8-af74-ca2ebdff8845.json and https://artists.proofprofile.net/proofs/artist/e05b73ec-b3f3-45d8-af74-ca2ebdff8845.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 0xf0f6dda57b903146ed856cbb8cc2a16ab1a78f3c7003993e53d67bed5100029e. 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/USWB10104307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cbe492ae4ac4723cf7b28d0efdff976b44aea9524c79c72711a95f98aae82fc. 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/USWB10104308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02a9a1729944128df60b0bdc31485931c819b15b8eb27a17f7f4a2df06a8f284. 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/USWB10200687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaed58a1a0afc0116a7042bf9ed74067d24cae13cd60ea1c13d4a399fd3eadcc. 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/USWB10104309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb75893c0d9e2ec42ab436c197078f245c469c52855793f867cca63052a91177a. 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/USWB10200688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6fabf8946d0215a628adee3fadcb0c202ef1424895deee0506558e3472c2a54. 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/USWB10200689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d9a110a4f1fdc47ae0333d7a3a9c2b832a101c775b64ee57e4060204b0b1fa4. 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/USWB10200690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc208efc128d40c99221ed3d2a9fc9e73b091e00875b2406f9d2d42aea984c2a3. 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/USWB10200691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc328fd0427910662ae8de35af98afbd11f2339f2c325fd413d3832eb4e30a67. 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/USWB10200692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x334c1a3df1ee2e1cf1fc85e411af06d3de1d091e972bd745119e1bd19c9615b2. 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/USWB10200693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x491c25a56b1ffbf0976a8b85cf78e0d6c9815da38052ca09ffcd01c65be30558. 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/USWB10902494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bbfcf8c4c803fdcea0a8cf90be37ebe197c04a8d8776a60ead0f8521c30658e. 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/USWB10902495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcef6fcf93e307fb6f27516e666ecb8873ad3c7314a5cc51f65cb5368974e5064. 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/USWB10902496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x197e09bf02922efba9d366ec4b6abc8e1a82806f66da3fef03fcaac30bef60e9. 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/USWB10902497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97f1c3d6f60a4d2abdf1c4643eabfc7f5690ff50431537b70c1010acbec15630. 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/USWB10902498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cc8b2b543d88c0186836aab4065eed7c9461a79cfaf3c28f2ac09a8b62a74ff. 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/USWB10902499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6b0c7f77d19270c7608c90eaf3cad74fb7fa62e9f587bc2a2c53fcae469abbf. 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/USWB10902500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ce8e592c51b974ccd071c32fdc36733f2994da4d4145917fdddc1d74a692f7a. 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/USWB10902501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5636a1b20c67d9106a682a71b97dc2fee94a68124e0b7af6a6eae1bde3a8744. 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/USWB10902502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae9c512aae49c4a11fd9458e004f7b8993983a236c42940c7cdb44e1ff8a3db0. 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/USWB10902503.