Patrick Cassidy may refer to: Patrick Cassidy (actor) (born 1962), American actor in musical theatre and television Patrick Cassidy (composer) (born 1956), Irish composer of film soundtracks Patri
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 0x2058b68bab99c1cb097c826ad66db542d775daeb8591437c3b7784e3533838eb. 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/f18f3577-ae8a-4a13-83e7-cba44bfcda47.json and https://artists.proofprofile.net/proofs/artist/f18f3577-ae8a-4a13-83e7-cba44bfcda47.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Calvary (Original Motion Picture Soundtrack)
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 0xf2252605f5106eadff32699c14b4b1dd2802a3cc7655626d87535140ef32c84f. 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/US3M51427903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea964219c4a63e13db9c68fae54cf18d9b0ffd285140e05646a5c96915abc512. Chain 2 (Bitcoin): anchored in block 958850 (2026-07-20T08:32:30Z), 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/US3M51427904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4efdc310a49186f83e89db3ad0ecbc70672ade7f458da98a8bac080d9f87a84b. 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/US3M51427905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70f00858edc1850613e059265bb9194aa3e018f05420e2453bf72d7f660b3932. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/US3M51427906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0c28eed07b022f91b47c298d50ad67c8ea1478bf122824f234d60ac3b68b2a4. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/US3M51427907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a549709844d996d4ceb2eafb8e8e349d7e085baa1a8aabb0646bf1a92ddbe86. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T08:02:29Z), 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/US3M51427908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94bfaf92f240c1c3f18a6d2645c514447d5223cb99a7352325d2f6703be0e1fa. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/US3M51427909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1296cd51e39e7fc6eb8e0de532f49460e7803704b609cea47c4fdb31ebc21b2c. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/US3M51427914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd2ff956667cca3a50e1d2e1b1932f28d4e52ca844f4839172a548c8c4077445. 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/US3M51427918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67cf64419a7d350a377266b16a25341bf304373b5b768ac9a3f0d6dd2d9d3e19. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/US3M51427921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11f8821490e6f440c5a8d1861075c8f74cdf5d58ec17d3faacf7507cac54e8d3. 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/US3M51427922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2f2eab3d53cf46a95b4d4fa235fbbd2e32cf04c76b1a4aff96eda83a0ac98a9. Chain 2 (Bitcoin): anchored in block 958474 (2026-07-18T00:59:09Z), 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/UKE8E1500003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69c87657c3f2d79bcd05c7d1407055872fa9037870e82e60b89124641ae6de45. 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/UKE8E1500006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9911afdc3537ddeca1328ce6a038d4c9237d5771d6c0128b1e156a9c1a82de2. 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/UKE8E1500017.
Smalltown (Original Television Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a964e7d316afb025b279725852c0d75ad15aeb1d6c51e231454e3103fe8f57d. 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/QZS1Z2001801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47563609a80d6ccd23f50494fb96e517887e9f8e1bc722330553015c89185646. Chain 2 (Bitcoin): anchored in block 958988 (2026-07-21T09:08:06Z), 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/QZS1Z2001804.
Ná Bris Andiu Mo Cheride (Do Not Break This Day, My Heart)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa885a1ffed0f7fe110b2a3af273f18b6b237e6f69d67f05b7c793e8f5364054c. 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/QZS1Z2002006.
Vide Cor Meum (20th Anniversary Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd58a663c494f75d20706e87bf4a5686134773ddeb0d04b0172177cbd01281db1. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZS1Z2103501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf3ab72444ebb5eeccf2776afc13167b8a0508af7c6877a4aa65a6e13bc03892. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/QZS1Z2103502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d1903a38f8fb5f47757d94b90f6dbae0d9886478ccb1782d1984e2190c1f4d9. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZS1Z2103505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9868adf9f6deb0a2988d9d291af4dc7f99b364671d993643d29dc999bba6f637. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/QZS1Z2103506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f553f0c3511cd97638bb3272f5c777500a6df096a4c6915284f07636d5a4e5c. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZS1Z2103510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51adc46b6756083a1b688c50f9b430a8c846a3f179248a67c2a2cec648c6124b. 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/QZS1Z2103511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63c1d395227cf0f0f3fd4d34927dde6eb2525f5d5ca8c6bf0117c91eae546872. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T08:17:14Z), 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/QZS1Z2103515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07b9ec5c6837432339169bc26495f3d027087465f69f01dcc2e7652fc37b84e3. 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/QZS1Z2205401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x300e9e6567bf95645e6f5e91081c1a974d71c09d49205824abd6d62c72dc62f5. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/QZS1Z2205405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d3036f5f2c95a1b01e2e48cb18d51e83e95a9a5cd8cb2b8f5194674ad399702. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/QZS1Z2205409.
Assassins (Original Off-Broadway Cast Recording)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb644cf42cce98042a4a86024f4e4f6c3ce57564ef0e03569712c24fc3f71586d. 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/USBC19101058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf845dba4f3a82a8745357af5770b8efbad15aaad8f792d1c357cb5266059675. 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/USBC19101111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48349c43ade55951e18dad078bd330841c373798bfc7ec58eac55cc4ae1262bd. 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/USBC19101061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e47e3d0fbc1b422df5cd88c03ef3b583a1a730f2256ce6c2af184dea956a065. 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/USBC19101062.
Sondheim: A Celebration at Carnegie Hall (Concert Cast Recording (1992))
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29fa807e20655776db1876bc1e9ffae6888aab67328883702b72e1e49f9b127b. Chain 2 (Bitcoin): anchored in block 960309 (2026-07-30T20:35:49Z), 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/USBC19200625.
The Classical Voice: A Celebration of the Classical Voice
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4de1e87fce0ff4400c02a9a51d48a805ebd63aa83864f6c384a94931515d7502. 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/GBEKZ0400460.
Sounds Of The Silver Screen: Classical Music At The Movies
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4de1e87fce0ff4400c02a9a51d48a805ebd63aa83864f6c384a94931515d7502. 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/GBEKZ0400460.
The City of Prague Philharmonic Orchestra
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05c0160c7a84ddad2c002c0419fc5d2dcef895c70ac17875c84804c081fd439c. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GBAJC0103550.
Hannibal - Original Motion Picture Soundtrack
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x715828a2ff0a7a64d0d40335985dec71b589eb655bb874344596d687daccbd8b. 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/GBBBB2014411.
Katherine Jenkins: The Ultimate Collection / Standard Edition
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4de1e87fce0ff4400c02a9a51d48a805ebd63aa83864f6c384a94931515d7502. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/GBEKZ0400460.