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 0xb9fcb856057a62cde9ca32c2b06b2e0b431c99ba8fa1c929fd7c9345af20a665. 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/c8591ca3-537f-4570-96e8-512754f3bc05.json and https://artists.proofprofile.net/proofs/artist/c8591ca3-537f-4570-96e8-512754f3bc05.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 0xf03e7e6eef6793e115ce6e075b2ab9be6cbb3c2053231d82c34414b68aa54688. 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/TCABL1345003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3d95cd3943b98334dbfe389dc6f4de4b10b8ff4cb74d470917a9868dec39c63. Chain 2 (Bitcoin): anchored in block 957608 (2026-07-11T21:00:50Z), 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/TCABL1345005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1ca0c4b9fbb963883b2c2aaea175b720a322b8ca44003c61e58e25c3ab60f3c. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:45:05Z), 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/TCABL1345006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc83a9d8d4e353ac8d30b084d4f07626ebcacf3b1cefa59ada6f0779adcf255b. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/TCABL1345007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb0130d82c382f1374c4527e810f442589aa6adf538df45e78afdc01f3a47b64. 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/TCABL1345008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe8b7f2ef79d836470fcc0b60c59f7ea464b00a8689890183fff38f49c70336f. 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/TCABL1345013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f364b2d92965b1f9db74e93ac41a123f3d7fd49baa5df50d3a06dc614dccf2a. 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/TCABL1345014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ceb89fb46c75eb464eb7eac54ab7a00763064d02f6674b979cd063b0430b3cb. 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/TCABN1364794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x054910612287f6ea439e418f728d2d6d827dc9472aedde7795eb3d3670f11d59. Chain 2 (Bitcoin): anchored in block 957599 (2026-07-11T19:42:17Z), 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/TCABR1327454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x764fef39df258e41605b4943df4e7e53d18f98210d6f25b5a2101f68fba35256. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:53:02Z), 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/TCABR1327451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa93c131135f1892c9673189fcb302ba0b324f861cbfbf5ede47c080b8caaa085. Chain 2 (Bitcoin): anchored in block 958705 (2026-07-19T08:43:25Z), 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/TCACI1598589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c2e213a62b28e698b5cd8927fa9a5003cc3229017f08abc03e94e1091227e5e. 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/TCACI1598593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3609b2b29eefb009da8c54c02a42bf911877c3d67aea8bd6190a0aa79105840. 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/TCACI1598597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92055594a0d43e79d83aba635d52d088ef30315c4c0adfd39ec4a2d7ba287afa. Chain 2 (Bitcoin): anchored in block 959091 (2026-07-22T05:09:07Z), 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/TCADG1768979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b613d1d90e9b437087f777f6406cde71c4bf042acf3680b9ae8e441810ff18e. 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/USLZJ2021685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43b534df9d77943008946ddee754ebdc344064c03bfc4c584e41d16db6fc51b4. 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/USLZJ2021695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73388f49124adef4f8b54b1804007c7eb87a4d8b2ab4506f5facff3d1c444e9d. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/USLZJ2021713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12700b2ba587472caa84b76878772aa870ca6f05cf07dfb1593b5756570622b2. 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/USLZJ2021721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20cb3caf9b7073a67be39f531862afb242ff534c7e06529771a1237da032b3be. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/USLZJ2021722.
Turn off the Lights for the Next 20 Minutes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6843be92be3cb6e4033a6ff2dfb007e581b02d41e162eb6926e80606b6c741c6. Chain 2 (Bitcoin): anchored in block 957603 (2026-07-11T20:26:17Z), 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/RUA1D2175651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf8e02ac282df73b407270ec7c083c1d97b2dd40136e8ded083de3bacc409839. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T20:05:46Z), 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/QZKWA2306804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05aa30d2579e3e650d2eb0b7b7c332297cb78c2fbcefcb960a44d8317e5d637c. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T20:54:38Z), 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/AEA0Q2389785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b0630190ac1ca22b4f95f3bec19720d53732fc083cb1cea7b8888072dcc5c29. 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/QZKWA2329172.