Allan Holdsworth (6 August 1946 – 15 April 2017)Brandle, Lars (17 April 2017). "Musicians React to Allan Holdsworth's Death". Billboard. Retrieved 17 April 2017. was a British jazz and rock guitarist,
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 0xe7f132d485664a661c072aac2687934b681758e602c347e0321d82fed7589290. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7a3ec025-e097-454e-a590-496d1cd92179.json and https://artists.proofprofile.net/proofs/artist/7a3ec025-e097-454e-a590-496d1cd92179.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a0b4c20201061098fecd74067ed474c1c309dc61e3c0adbaa3403b054a6d7e7. 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/USSM17600741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42be6b58e4397a9d140eba264e113b758eede849b69d662c6cc2be908ba234c3. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USSM10214617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5f5eb80e1e26897cc1cb26f93377a41f297fb40d5e767a34ec1beaf9010f119. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/USSM10214618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x837e633d7a53dedc21966b738a2957182e715f0bca5b37587433552ccc1a7bd5. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/USSM10214619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25a40fa0cd62e3ddbc2283d39f39730ca8de2687ed9d2a53481b2ea0e52dbe29. 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/USSM10214621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25f2461b9c7a48e8529d3e618cd221d4aaf27aeed0eb3872d6c4c0a41c7f8094. 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/USQE11710119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48097f14f2018f1eab44c49b74a0688b56b61e4f0948f5ce50544ea67b9411db. 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/USQE11710112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1840dcca251aaf6ead2d25cc40351c104c24475bd9d3d2a2636f1a5c8805a9f0. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/USQE11710178.
The Things You See (When You Haven't Got Your Gun) - Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa10d866a73b1ef9c6ad5cca83b5c659ae88e8fbaad5d458a2ee41a7e21a2f03e. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/USQE11710001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6164d72cefc54548d97118c4c86f6116ebcc9cf6cbc1cd85dfe8bc29d76c863. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T18:24:32Z), 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/USQE11710002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe287122755d362b3a9db6c00730387d59f6442311e96e27402c78c127bf1f79b. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:13:44Z), 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/USQE11710003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa10cfebf533aaeab0b5fa6de6e1e1a2f76206354fb58e1713c80efc04fffcb7. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:37:28Z), 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/USQE11710004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f6ef83f11ab854ab10d9d559c29d71cc70a96cef7a9853ef9cf1cc56daaf670. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/USQE11710005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a143c98b68b21166728a083a34323cca4232e804aa8a1e4aba1e93e7f798bef. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T16:36:51Z), 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/USQE11710006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b1cc31cf99ae62ee0942715f86765d358be7485add1542ce3b9781b511c6642. 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/USQE11710007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x249de6b83a9ce062d1d1fd83a1f29ccdf6ff03efefb02a0b94c1b9137ff97b82. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:22:05Z), 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/USQE11710008.
The Un-Merry Go Round (In Loving Memory of My Father) - Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8cfdf3cca8e74aa9194729d7e53d284a44928e33bb2ed78477816c3fbc23e78. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/USQE11710019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68ac832f823ab2947b54a597a0bb82d2eb2b095338ebf9843d6de1e5384b146a. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/USQE11710020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1acdb72ef4aab9b63194b861467296181fa79cf569912443136ab638447d56a8. 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/USQE11710022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x396d9ef974112091153073091adf40dcff8dcf06ff1f759f5183d210c7df75da. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/USQE11710023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc4eaed5f63870526235652aec70276f075c7b324b5a1123d7f24fe4724df59e. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/USQE11710024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca6fd0bd6026eadaca12213a2bc652f4ed38513846a0ba50da2aaa793a9bdf57. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/USQE11710026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf477e9d597991ae6264033f37fe5652834556d566f8cb9eee27f7f33db56b055. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/USQE11710027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7246d1f068d8417088799e7a0ce6a70a4bbcc81484ea5ff17080eca2886aece2. 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/USSM11603106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa3411573eb114c39f5fa74f02061f0fe39dd263682ebb5e760c0ff308233a81. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/USSM11603107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6965236ffe0f6034733be39bcf530bad3fb9644b07502716b9beb70762367b55. 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/USSM11603108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d7a6afcf6fbb69b29b0108bed2c277e44da0ad2819fe53371497aebb9391593. 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/USSM11603109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7de99f08f723500e22936ed59ded7d14e5eb4181d5b831d51f1f94c153e65d66. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/USSM11603110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7133b659eee6db46f075d09c87212e4f2def193ff00403ad693e23705dcf48ff. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USQE11710039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc68f3ed1d32a55f687f38870ab98d30c88ce9aaf81a0f538101fb21d1a10abf. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/USQE11710040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb89afb8619d49b3a792a53bc069d98c25b2eab0636b64bc28fadf683fa3c24b6. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/USQE11710042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c304e3f7e074e33c611a23255931b60a94859d439875dbd1278a729890262b8. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T23:22:44Z), 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/USQE11710043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48ddd30d13193fbee66a55ad1e84a3004b5029c6faa1f90f4878635aeac96da3. 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/USQE11710044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacb102873b51c7e2fb9b6ffbc5e805520340b8220e727c8a97c63f6bf779e3d3. 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/USQE11710045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x129c7d6c102f0a51d574671b8cc937f48897345d1bf4edf23fcb7b886b2c84ce. 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/USQE11710046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb038b6dda220b1e933fb817e1143f9f45a9b442c7f8ebdc893752953fe5fdba. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/USQE11710047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f6ec8f96ebcbcba86043dd71d5dd98414c5470ab621f521b48cb215e4b7dc9a. Chain 2 (Bitcoin): anchored in block 958644 (2026-07-19T02:21:25Z), 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/USQE11710048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf228fe3e6ad0acd8a39c41c0be0c97fc20a5d3086faacad6a4265adb2bfce0b5. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-16T21:48:38Z), 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/USQE11710050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61923ac2a2c09d6809d5a54b7ff5be820b1a5d03a81bc22e38e72c6130436cd3. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T16:09:49Z), 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/USQE11710054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23221dc647ab4862dbc59098d1bd9f30dcec47ad73555a2f7be89ed3d2b6306e. 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/USQE11710055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad670fd6abace8f665650310ab62882afb6fa4dedc49c9480636f64cdf38cef3. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T00:35:28Z), 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/USQE11710057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c1a40866353fd6ecfa0d7adeb2ad5a5fb1e649b4712f868192934eb135d6d4f. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/USQE11710060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd8bc75b8852efb3106b60c6c1a9df64756d7b13a98e4a11a257ea7992f832cb. 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/USQE11810115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x278ed09816f93edb289f622cd3f5a001de22fb7adf8392d8b9642d21807cfc60. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/USQE11710071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8857a89c305f4334312051b3a1010ff6a6657e18a733e1953d3039ad4c98a723. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/USQE11710072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00c8a8293e911456d78260fd84afddd2b108c48e6a66941a32662da2e120a2e3. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/USQE11710075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa43cb95f6680fdba67c2182970ab23fe8a0af4510cd69ce0e1400662632adb5. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:48:41Z), 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/USQE11710076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb4f14a918e24398cdd982b7408d1409c000f87abcb2145d3b5020223839d758. 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/USQE11710077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4478ade4b35ca3663fbf52e9de2be483cb0ad6401737ac606f200e623239b626. 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/USQE11710078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccb638aae0d824434cbec874d06e33535715b08e05ea506a59ceba4397caadb5. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/USQE11710079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc539fbe972d853d3ecf337e352d3a2ccba3e2ea8231a89c38c7ac7046a6209c3. 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/USQE11710080.
Flat Tire (Music for a Non-Existing Movie) (Remastered)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83684f33526590ffb519ea28d875b97fa5bf4f64099783855b93c8bc3b1a4258. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/USFN10323300.
ライヴ・イン・カリフォルニア １９８２ (ライブ)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0c11816334fe9035790a8100e9df59323913ccd54133a79bad7e8bc446e7561. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEK931735301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeea5524df96fe42b6f0e16215a613ecec972bc6162d26944e535163ef66e1b75. 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/US4R31335485.
Guitar Maters Vol. 3 & 4: Les Paul Dedication
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6096cfb6f033416d550a9b2adeec9a1589a1aba8297ff37712e30e0d310d6707. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USD841010013.
Individual Choice (2023 Remastered Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38332c1e9b99c1aedfc82afeb28f9474c58edbd9cbc24923188b4ae3d1b4a664. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T19:23:22Z), 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/DEH842200141.
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 0x99577c8e13c230e29eb375337d55cfbe10da0cbd121d2a5c4b3602ba396749f7. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/USD841010058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7dc56170cedf10f8810ef3da721803603ce59b0348c261db7482b0da50dbba6. Chain 2 (Bitcoin): anchored in block 960298 (2026-07-30T19:26:00Z), 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/DEK931735303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25a4af294198e4ead692f6ecd7cd3b5d87091f8d0c73317d700bf804202bee78. Chain 2 (Bitcoin): anchored in block 960191 (2026-07-30T01:51:26Z), 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/USWB10900430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbfc7e0cac61648993c843953c217e4aaf4508139d773feac685e3cc754fb40f. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/DEH842200143.