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 0xaaa1f9cf9cf2cbb71bf1f71fb53b0325e420bc58211a8b4cfa15ed482da0adc7. Chain 2 (Bitcoin): anchored in block 953625 (2026-06-14T11:37:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/28d76fc8-6b6e-4b32-a06e-4d9efdeb5ddd.json and https://artists.proofprofile.net/proofs/artist/28d76fc8-6b6e-4b32-a06e-4d9efdeb5ddd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Queenie Was A Blonde - Original Broadway Cast/2000
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 0x851395dba4d847ca733274f39f9bee0ca870163971f6312776e2f80a4a519fba. 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/USUMC0000120.
Wild Party - Original Broadway Cast/2000
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c5880f9f97fb24eb535520695307d3084e108af9ecd3b717308c24287368bf8. 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/USUMC0000122.
Welcome To My Party - Original Broadway Cast/2000
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34dd59f7099f8d3f1669c9075e576febfe9f493331dbb2b85c5264816e90138c. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/USUMC0000124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x352cf8fb6d58d6fd8486124396432845d919e8878e85ba36b5f3bc970171db86. 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/USUMC0000126.
Gold & Goldberg - Original Broadway Cast/2000
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f8ad7530203c9862b3933e46da8416673ce13bc06d337d3838c84b5537c8052. 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/USUMC0000128.
Moving Uptown - Original Broadway Cast/2000
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x279b8b3698a0b340b60eab1f3a174a30cc9aff3aac77719b6390989787a0ae95. 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/USUMC0000129.
Best Friend - Original Broadway Cast/2000
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfed0276f939084fac55b0a18662aea8750fdf49faf463abc7d5b470243cdbf0e. 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/USUMC0000130.
A Little Mmm - Original Broadway Cast/2000
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7388e5dc9a059476fde106292b901bcd49a5783bff8d086e7077438c9049641. 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/USUMC0000117.
Tabu / Taking Care Of The Ladies - Original Broadway Cast/2000
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91bd7b416aed7b791dc81ac9d32c088c1d6d00f39900f7da390987fc93659cb6. 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/USUMC0000131.
Wouldn't It Be Nice? - Original Broadway Cast/2000
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc7a8b9960f24cb7eabf9d7f166f0158d913c8f516ce79d1ae1e9ae96f51e936. Chain 2 (Bitcoin): anchored in block 957039 (2026-07-07T12:58:18Z), 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/USUMC0000132.
Gin / Wild - Original Broadway Cast/2000
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e4e09bc645afd166006c13317d0183a9a4d802b7a9c4ff511f166577ff8a9a3. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/USUMC0000134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13d61814b1bf9a830a6523a7a39d053c9ac295c46feacda173ba67252a5fd29d. 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/USUMC0000136.
Black Is A Moocher - Original Broadway Cast/2000
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf455055ed0e262d545e7d742b252d3856f185ce6dff7a9cc8ec36ea183963661. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/USUMC0000135.
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
Marie Is Tricky - Original Broadway Cast/2000
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fd723814b0b10180cb1e90804f898049f44cdde7ed6e7bb28ec104e320cb630. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/USUMC0000121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf4d5e6b12435303567d839118344794faafec85b8a2853d48552ff2033844d3. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/USUMC0000123.
Like Sally - Original Broadway Cast/2000
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ba8a618e558ad18f7db6fc25dc3b6ac2edf5b47a3a55cecfd916f81c4c6ffa4. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/USUMC0000118.
Breezin' Through Another Day - Original Broadway Cast/2000
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec75cdab3878b8a7c02eb8caabc52ee0c18e2ab7914621b6fc34b4766afa5544. Chain 2 (Bitcoin): anchored in block 960153 (2026-07-29T21:57:12Z), 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/USUMC0000125.
Eddie & Mae - Original Broadway Cast/2000
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2818c1611c37faf5bd83be3a695e57c7de55b5235bc11dc292f7aece75a4b16f. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/USUMC0000127.
Lowdown-Down - Original Broadway Cast/2000
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x076cbc253ae5aaed91e649a518876a1f4fa20acf32c057f17f87bf7a610e2bd2. Chain 2 (Bitcoin): anchored in block 960183 (2026-07-30T01:10:20Z), 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/USUMC0000133.