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 0x463344c3b5adb5e5479bb14d290eca1ddb442ea3ba810c9bb831d83cd8f68c2f. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/227ccc50-33c2-452d-a506-06fc9a208567.json and https://artists.proofprofile.net/proofs/artist/227ccc50-33c2-452d-a506-06fc9a208567.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Resurrection in The City of Angels and Androids
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 0x6c01ce7a08fb7ee1a139858ecae5fc17edcbfd3d21db6c19e8961aa2682d434a. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:06:23Z), 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/QZES72212226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07e989d3abaf0f7a3a0743ca21b34b931372ad75e25a8c40351443f2aca62eb6. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/QZHN62205234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc2a189fefa10bbe38dd564cbd4b34aae1c3ed5b9e4604075fcd9b8c1cbb3473. 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/QZHN62205236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb2b77b33a6503b7967dcba6530afc1106cda912e5461ed6a5b9d63fea3d5e0d. 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/QZNWT2324800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e252b3427dfe8e1634aa7beaa4462b6ec0d6294c164a5cd65bf88c054fb5d39. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/QZWFR2357307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3e064826e33ee81b8b99bc6abab3fce080b51dd90d7b519052469275baa867e. 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/QZTAZ2491979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c7eb8bbb215c3f8801efeb0fc8f9da06c2041a857c6ea9e3884173702963e01. 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/QZK6P2467910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8431c29d2346d7e26bb1808b551f46e0d7b09591f40a6772fa5ce4a7d86041a3. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/QZHN42521460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37c99c2a2d6a9b5c294ff4b9d79a8a1d36f58053dca294aa8dc059e578f53691. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:30:23Z), 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/QZHN42521461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b9525bccf3a14d41742c0b7308f1d9290a2ed6f381f77e9f7755a2481de67cd. 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/QZHN42521462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4244be3fe3278d91e89c73dd0eea42988cfd32bb249d5798235b40627ebc1a6a. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T08:46:20Z), 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/QZHN42521463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb745c2ab81111bef98b57adad296deddd0031eca4534347d25c240d8af8dbbd. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/QZHN42521464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ff0f1be6cf2145cf8ea7bbec9e73e9fff644f0bd0a7f4282b33e911458cd27c. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/QZHN42521465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc758a1585630f4871f0765bee8a741b0e92bcee09e19e92ee4e3928dfb200d47. 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/QZHN42521466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c7feeb219e415194a781d8c955f341d5c38f98186f2cf2dfc2e9c233e0ad9a8. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T02:52:10Z), 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/QZHN42521468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68b8a4d4a7a2c17fca1216b91e9c3915b29b4d6ada5d86f5a01eb18c75d0b896. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/QZHN42521470.