1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x31bfc2e1e5e70b6edd13d6c02da72853536f6de87369355a55f54f4870ae1c6a. 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/470c4927-17af-4439-8445-3e5b241553e6.json and https://artists.proofprofile.net/proofs/artist/470c4927-17af-4439-8445-3e5b241553e6.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 → block OTSBitcoinBlock must exist at that height 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 0x235b5e5a971d05ac095a68702cb6933ced4706b776f232bc70520cab0afa629a. Chain 2 (Bitcoin): anchored in block 956861 (2026-07-06T01:57:57Z), 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/TCJPL2037358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5ed81f938b5c93dafe5ec291ea4796f1d4591a07755f515b54817c80afd0d63. 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/TCJPL2037362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59a97779c65a7bb7e1e395541a0f3503190cfeb10eebf3eefde7210a941d534d. 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/TCJPL2037364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb101c93f054c12377694d59aff4ee246c7960ea29703974bb1fa6e23de3f587. 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/TCJPL2037406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x235b5e5a971d05ac095a68702cb6933ced4706b776f232bc70520cab0afa629a. 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/TCJPL2037358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5ed81f938b5c93dafe5ec291ea4796f1d4591a07755f515b54817c80afd0d63. 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/TCJPL2037362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59a97779c65a7bb7e1e395541a0f3503190cfeb10eebf3eefde7210a941d534d. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/TCJPL2037364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb101c93f054c12377694d59aff4ee246c7960ea29703974bb1fa6e23de3f587. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/TCJPL2037406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e719ae81bd131ee5ca1ec93f3d0c2c9df98d81f3633e80d377d5d7f4eca373a. Chain 2 (Bitcoin): anchored in block 958130 (2026-07-15T11:24:02Z), 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/TCJPM2052144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74f9bf2c1d3681630323a8c1cc8a1a30ebe83e5cc8f3b6953ee3e7e9c3078724. 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/TCJPN2021334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdad8e8a0a7d892f4c2127a25e591ad5b409bd74f6832e6bdb8ba6044c4bff4f. 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/TCJPN2017335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74f9bf2c1d3681630323a8c1cc8a1a30ebe83e5cc8f3b6953ee3e7e9c3078724. 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/TCJPN2021334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdad8e8a0a7d892f4c2127a25e591ad5b409bd74f6832e6bdb8ba6044c4bff4f. 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/TCJPN2017335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aa708f79ebace2e5faad3f19700f66bd518bf79227e41aa2d1147c11ce3fb07. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/TCJPQ2171642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba054a4cdd93a8bd6f62d80685d550e6ed5b94e3ea9167f55bb01f1700970130. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/TCJPR2284234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x372d8361dcfd8a541b54374f1a1e034ad020bc678390b08a6b2c21ee3b845a30. 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/TCJPS2243360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5471b21840eaa041c54fe5eb5793c120ade0c167ab28597ee5a4e33ff63d5b40. 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/JPVI02202913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d670959b9b185805eb950df1d8a89330ee36e4aab86dc6c15ce02c702d15d0c. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/JPVI02203704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12cad512550047e02bec51470391e070c756cf4324bf8d4934b7b9a3db96fd5a. 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/JPVI02204457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5941560a98d467b3f1593e892298985e908ad28e4fcd003c9f7e09edc4f012e4. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/TCJPX2374099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29cf0f1771c2f20955a3349026b849e089a62459acfb36cce281c0aa4d22a8af. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/TCJPX2374103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x657201cdad8fa2a5dbdb461ecd41db786c3a40fe01f9a58e26847545b2878efd. 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/TCJPX2374114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74b3fbe5d04280306d49d7521f92de57f9eae8d138599859759a82f98928c47a. 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/TCJPX2374118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5941560a98d467b3f1593e892298985e908ad28e4fcd003c9f7e09edc4f012e4. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-20T00:10:20Z), 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/TCJPX2374099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29cf0f1771c2f20955a3349026b849e089a62459acfb36cce281c0aa4d22a8af. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/TCJPX2374103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x657201cdad8fa2a5dbdb461ecd41db786c3a40fe01f9a58e26847545b2878efd. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/TCJPX2374114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74b3fbe5d04280306d49d7521f92de57f9eae8d138599859759a82f98928c47a. 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/TCJPX2374118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cf487f4115499f6fb95495c44e9915ab5ac07f13800f41dea23b1d3bb410fe1. 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/TCJPX2398309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75fb8863a68d9a160d50d47e1cd3d1934fa6a90cc4d7a1d0d859efee7aba14a9. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/TCJPZ2408489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf33e456ab4a16b76cc79fa6e27dc4054cd482ae801ea5c0a18b46a5e0d286c7. 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/TCJPZ2488841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5e5ceb84ef43dd4d55a80cfe802f6e3a15792d32ea12852370dbd374eab0847. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/TCJPB2451020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea47c0347effb3141ebd8d6560e7536872e783e1c32ee07d7cd0b5aa55de81df. 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/TCJPB2482478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0efcc3c7523a8073d111bad04cf97d9d9858419cb99adf9bb3dd105508fd0b83. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/QT66J2591573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcee30f869e6c48db82795031f3c30b18788c2b18d966587f426cb704364f98ca. 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/QT66K2558516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1705f03e47b14a5fd97324323493893d88f1bbe558ae13a9726d7c82687d38c6. 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/JP92N2444498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc355d0a916f566e995ee1ee0aebeaa28079d91bfe508bfcb4bf48c9836961a5. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/TCJPB2403969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e2c689258a9422105f462433731cc314925c42b4ca6d2cb9ba9526ca0ab1c8c. 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/TCJPC2417697.