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 0x114adfbaf95e381d57bf67c8edeef3cb1396963e7da500464a5c0ec679a23a0a. 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/a033d44e-1555-4ba5-bb9a-0a0806e26f2c.json and https://artists.proofprofile.net/proofs/artist/a033d44e-1555-4ba5-bb9a-0a0806e26f2c.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 0x37f21a17131a8a35448be6a230ca6c01f98b64013cb33be966189fe273df85b5. 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/GBAYE0700991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95a6c3a04bf2d3c1317f565c5e9fd2cdf26163e12b0c39ac7827b856c5b99865. 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/GBAYE0700994.
(I Left My Heart) In San Francisco - 2007 Remaster
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x953d85b40dee47fde12c2cd8b7f3daf494ed6232663d78898cd4ab6a7e4498ce. 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/GBAYE0700996.
Jazz, Delicious Hot, Disgusting Cold - 2007 Remaster
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f0aaea19d39bce03a0b3972888805eb4b05558753ee070f1232073a5299a044. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:10:13Z), 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/GBAYE0700998.
Mickey's Son and Daughter - 2007 Remaster
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85978723692d7ba85b6e36c19dc070a6a508bcbff16fdd3bfb190d0e6799d729. 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/GBAYE0701008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fe38266998fd92e8c1624bd438aec9c67c8dd55ff1b0cf80e064d6c6b2ed7de. 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/GBAYE0701009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba71f4373c05a3de3a8d2a41974fc8c93f21821527e92315ef0f5cc8664769ed. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/GBAYE0701012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf82a80c707070667b2803ea03fd573f80a78516cbc591fd185100869244354b9. 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/GBAYE0701020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c37342f7ea5b1333ec7820787dd5d7377932c1cd25fc781b1c4d46521b22376. 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/GBAYE0701022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e0b6d6f1fbad6ff46c586d9d9bac59e89ef61e23325b1ff099d32b5580f4794. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/GBAYE0701031.
My Pink Half of the Drainpipe - 2007 Remaster
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aeb83455f8483e30fc764e2df005628cc2d4b97df6c8d310c6ad2b3142a833c. 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/GBAYE0701033.
Hunting Tigers out in India - 2007 Remaster
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c13678506b1d17170a66aef9b0922001f61e0f84730477662bba50cf24744e4. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-02T21:02:00Z), 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/GBAYE0701043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf10e472805d800df23df71f181d99ca8a04057b704964e4695c5a65c733c4f71. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/GBAYE0701047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d0153c2f5442e8e345cbaf1064cfd78f41f5d343ef30e3ca36f77f10775db7f. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/GBAYE0701092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e1eac098a8a6dee262a3df35d7c3e86250e97716a5bd82c727151641dc18f3c. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:56:48Z), 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/GBAYE0701094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2582cea8a2116bf1b42cd2739000ccc51e2b51bd9aa0ff6a03540026c7884119. 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/GBAYE0701097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f3cccf95c5ab459b6207ca82b640ee00091c6ef7b59ca3a49e009f59f6cb8c9. Chain 2 (Bitcoin): anchored in block 958706 (2026-07-19T08:50:34Z), 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/GBAYE0701098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x395c2a93157a31217c168d31e0621f716c78527e28207a197ebb18b2c1a2a76c. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/GBAYE0701107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7b446846c27669a4c578ac7c7b75f923e2bd4e5079a3f59d39fedf93b481fc8. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/GBAYE0701108.
Quiet Talks and Summer Walks - 2007 Remaster
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f88dbbe8e6b69215fe929041b86cf0ecf470ecac959cbce63f708db434b81fe. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T16:43:10Z), 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/GBAYE0701109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88bf3f1d9195eab2c042eca95051f2d6bf6660053d26aebfb0515f22c7e64744. 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/GBAYE6800649.
Dave Lee Travis Session [15th December 1969]
Solid Gold Bonzo Dog Doo-Dah Band, Vol. 1
Solid Gold Bonzo Dog Doo-Dah Band, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc36da25b557bc0814a2a1d8f9eddb314ba899cf4e4dcf4081194735676125bd6. 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/GBAYE0701093.
100 Greatest 60s: Golden Oldies From The Sixties
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13043fcffe20a94752a91fade1dc0d03f06f575f4bd1ee4cfbcc0d7353af232c. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/GBAYE6800147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc36da25b557bc0814a2a1d8f9eddb314ba899cf4e4dcf4081194735676125bd6. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBAYE0701093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13043fcffe20a94752a91fade1dc0d03f06f575f4bd1ee4cfbcc0d7353af232c. 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/GBAYE6800147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc36da25b557bc0814a2a1d8f9eddb314ba899cf4e4dcf4081194735676125bd6. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/GBAYE0701093.