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 0x9024c32bc94bd7b35668402c8487562e4937bb856e112f5b4f0d34327dd58a0e. 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/97d81ac7-b84e-497b-80b7-c9e75653cd73.json and https://artists.proofprofile.net/proofs/artist/97d81ac7-b84e-497b-80b7-c9e75653cd73.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
A Little Princess: The Musical (Original Broadway Cast Recording)
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 0x8211016d5e787c3b1e88bd60bd190e62120b241e5482df3df27189e72a8ea189. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/USSK31140210.
Violet (Original Broadway Cast Recording)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12c799136fa15894bb2cb16933e5d578d64b29890c38d4aa886fb50997a45f8c. 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/USB961442201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa246a55ff5db2a332cc4f0fd0978ffbcb47605219966272476f0b3bb3f160820. 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/USB961442202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45eb11a2bd88be22ca497afa2927b23f8542e1802b5a78831eba73bc7fcd4744. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USB961442203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x260bcafe403aa4fd79a3fb41883cd294ff858d53aba9da60c24d5303762df034. 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/USB961442204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8d5a3ef22287fee5bc0a9ed8ab0bfa8cd5b1510e572fd7ae0958bfb5cf19daa. 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/USB961442205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3d6fa6b0d45b40cc432a25bd562ed743eae35ca49e79f517feca4772b4fe991. 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/USB961442206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8995e71c811b9cbac380731810562464cb3a65933d3ea946d2a4e7192683c1fb. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/USB961442207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbde26f7b51a20993adc169e91a287c60fe7f719c35fd06dd1eb1fe79e0984120. 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/USB961442208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfb631bf52d5b3e47ea80d6f72d430efbdd1e58475de651409ee21ad5d582f59. 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/USB961442209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9138965ef4d28b7d7473ddcf8dccc782c20649f0e3a3b0ae9b81bf2cbe548046. 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/USB961442212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17efd7e320862b64c6f62c109a88a1b4ed366a43a05a3bf86753406f3193fe6a. 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/USB961442214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc062186ab3e9eca9bd91500b56adcfae4fcafa4e6fba52bf9f9a59ff6ff386da. 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/USB961442215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x593838ad24266a99d2297db66f293fa88b45bf60e22acb5aa83d67275595ac74. 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/USB961442216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd292850e239aa115c0d3f63812e31cdb2a17b459c8e0b7d06e9188c4c44ba89c. 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/USB961442218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa52fc52fd5e5ebc68b239ce34ee925d6e39edea4218407348ef4b5272402570. 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/USB961442219.