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 0x6748f32f22460e20684df7a3e86f1a7107a15a0bab9d9b5d69785be9a44aa08b. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ad66c952-852d-4aa5-a522-793d14898ef5.json and https://artists.proofprofile.net/proofs/artist/ad66c952-852d-4aa5-a522-793d14898ef5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Happy Hunting (Original Broadway Cast Recording)
The Boy Friend (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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1274355065061c414c26a5b55e60a2a2b899e3152d07955b3c11593b78c42822. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/GBBBM9302014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ef6223b6b9b537aa6145fae370463cb7700dbcb2fd037bca921d3bf484bfe2f. 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/GBBBM9302019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25505d41abc7ad1097ab210394135ff83cdf9617c0919d98b9c0dcff143d9917. 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/GBBBM9302021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd352866512c202ac1772ad91905db368c046a5f1e10fa332b0986bbb7f107087. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/GBBBM9302024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea8f54df927c5075cdc8dcf445bbe513c09ed48dcfb9cc301630e9d7076d3454. 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/GBBBM9302028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0d2ac97dbf095a352851a7fd091d11411865e5a813f5ac0f529faef4e37ecf4. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/GBBBM9302029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe589cccd00e00af410aab6d9967d84bd4dd2be2bac55e7e0c6d9b1ab39837ef. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/GBBBM9302030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b06377eef76d5ee54115402541b33a585469e6dc46afc35d981ce48e03a7401. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/GBBBM9302032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b74ff8c5fe9fe663cd94cfa4a9392e883d253c9900b11c94e528fd5bfbc628f. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/GBBBM9302033.
The New Rocky Horror Show - 25 Years Young
Sondheim Tonight: Live From The Barbican Theatre: Complete Recording (Live From The Barbican Centre London)
Forbidden Broadway: Special Victims Unit!
A Very Merry Unauthorized Children's Scientology Pageant
Hair - Actors Fund of America Benefit Recording
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3544f7a96b28aef569a25a19532893fab1f6d234df9fc27f78db88f2a5619062. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/GBARL0601770.
Jacques Brel is Alive and Well and Living in Paris (Additional Bonus Tracks)
Jacques Brel Is Alive And Well And Living In Paris
Loving Repeating (Original Cast Recording)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3544f7a96b28aef569a25a19532893fab1f6d234df9fc27f78db88f2a5619062. 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/GBARL0601770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95cf29dc07b228289b58ad751aea4d878cd23a876de60e65283f723585ec497f. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/USRC15607677.
Noel & Cole - Let's Do It (The Songs Of Noel Coward And Cole Porter)
Imaginocean: Original Off Broadway Cast Recording
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4af9c7ef8fc0e7b88fc4fa9b56172e6f4ab847ab19a77b4e93c610d01c035229. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/GBX2B1100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09a46271db910dc18d6c064584bf788a87c87df66dbd7bb17f5f43a566ec3bbc. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/GBX2B1100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1c87a6c38f0a56cf1d369f885c37f9ab4add088a834561f345574371a494ffb. 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/GBX2B1100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42fb8d501f2e612c9e6fea1d044f7ed1c9d14d6bc80f510814162600c17e9605. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:50:31Z), 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/GBX2B1100011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f846f18f704cbef2e2b3f5099e29c72d695b47cdd85b9553f555ded8bd93d34. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/GBX2B1100017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94796604733343f35624ee4fde5a6ef3266f431392e1bfd0755159a74d3cbaaa. 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/GBX2B1100018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bc81f89383df6a040ee3c46468e3e42a73cdd52f30ab087b16b46f4cb8ec405. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/GBX2B1100022.
Unchained Melody (Dance) / The Love Inside
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd470cd734eb967d54128fc5e3eb9ceaf0232e7e8f575661d973ed3b8b224b3e4. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:30:29Z), 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/GBX2B1100024.
Freak Dance: A Film By Upright Citizens Brigade (Original Motion Picture Soundtrack)
35MM: A Musical Exhibition (Original Cast Recording)
The Sound of Music - Original Broadway Cast Recording
The Sound of Music 50th Anniversary 2015 Academy Awards Medley
The Sound of Music 1959 Original Broadway Cast - 50th Anniversary of the Film
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb09850fa41b113bfdcf2d5c84560b4e8d278afcd47b7daccdcc73cc33c6640d0. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:38:44Z), 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/QMFMG1513824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x867e6b459edf91dd55edee2e144e882ffc599ac05b2267cd195fe3a54e54cdda. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T11:42:30Z), 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/QMFMG1513827.
Iedereen Beroemd (Original Cast Recording)
! ! ! Piano Covers of Movie Soundtracks ! ! !
I'm Not That Girl & Other Musical Covers
The Threepenny Opera (Original 1954 English Adaptation)
Charlotte Sweet: Complete Recording (Original Cast Recording)
Scrooge: The Musical (Original London Cast)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2220938a06fbd6379dcbefc835de47a3bbaf35853219cec708eb2d7a82bd76c0. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:10:29Z), 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/GBDGA0301737.