REDIRECT Disjunctive Datalog#Implementations
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe02b6371c540840333d7f3c03707e68167492334ee948c2feea4dadd3f5a7d66. 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/0aa03897-54b4-4237-bc98-1c2ca8cc06ab.json and https://artists.proofprofile.net/proofs/artist/0aa03897-54b4-4237-bc98-1c2ca8cc06ab.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x433e2c5454264629788766698902046e038a205cda5b5e1930e13a886ccb9b2d. 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/GB8KE2057632.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5568a35d21ea68eb2854c430a3f7db477ecb0d84503021b28f7920d3edaab751. 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/GB8KE2057640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53f3f9366509d91fdccbc4f100e3ce05e3bb6f2ae8ff3ddacd26f0d55ab5ce42. 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/UKN6K2401070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0d72045fb439b3493ae6ca2637839d505819fe3e8ca6f87e5a998953614befa. 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/UKN6K2401071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaad7127f9ffc99c8e41363477b8ec4aa10b6005515f5f687f1d80f2a9a2d5a8e. 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/BEN582200237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fda2ac05a63ab678feb8fed81d980a8f1efbab2434e5336d3a3a877ca7f4d59. 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/BEN582200239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec63b8a866152f939b9cd39b2ace1f4f8d0a6c70a73635ab6c418f1d68eeb99e. 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/BEN582200240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbce8e19d45eb84c98ee21528bad2581f7a803c9dad577fe1630d848af68b33d7. 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/NL9WP2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3a3f9b19d4f253029032e0435452a598e24407d09e23a487373164b684d2fd1. 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/NL9WP2400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e95c479d3eea12fcddd067a952ca682246898abe880167096862102a907e1b8. 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/NL9WP2400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd558d6cad2d0d73f9ddce7a0395952c7015b33246853b88f7b3af5ef44535b49. 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/ATEK02377077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c7e994d4c7dccb9ab973d549c2f17b09cd5bbc94290791e45e97d93148fae80. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/ATEK02377078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xead3bccdfa1c5c5f9a47e3dba6160af4873f6b0a75425577da30a1751842c94e. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ATEK02077054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29953453163103d98868203f49fc1d4163c6187ac0dc32b856a83de71a202787. 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/ATEK02077055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x571a537b9ec1ff82a653bd8b4e7a0e0ac8020ede77cd1ec5ec1315e3d0531454. 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/ATEK02077056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bd905bf18dc8e0b6afb31686ba576e4d45184ca372fa0b5028e4ee63ecec319. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DEY472174891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c0c25150ad1f4691ec1e52369fcad956105c8813c0fe228271d6bd3b72eb0fd. 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/DEY472174892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0eb12cbdebd05fcf29a5542be35012f7db77ad9af6d6ea6f941b5192acd075eb. 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/DEY472174893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31f43732425c6affe84fb5d6189ea7e98ce5bb1bd1255781e911c2eb999d8114. 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/DEY472174894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43da7f9f75490cbfcb181684d7cd07522d7bdf82e2635198eb8b5771fa340f73. 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/DEY472174895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9afdec5fd49bb370423c04d9501bd784a64321a36b7b9b658719fa6ee4439f2a. 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/NLCK41083922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98888ecf491c9a2a22643968d72d8204e6b520b2572992edb22e1a3c01ee402a. 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/NLCK41083924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd028decacbf6efa7a266ea463192d61fa7c260147b515a87b4c1548d3ba150e2. 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/NLCK41083925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43dc6aeed27846b95e2750dd23855769ccf2823a4b1eeb42edc8ffc2f5d099ef. 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/NLCK42232140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52be420bf7ef50618462bc85763881b3f96c32bea7cab8f80d285588b7234632. 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/NLCK42232141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c641a449133c92f214ea4687d30280ed89dfe1c9ec36346e61fd86149549990. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T19:21:40Z), 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/NLCK42232142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3367f5b735605472902c39535fbf1618633556c84a1e23ea5826a1c3fb62f9a1. 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/NLCK42232143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf82700d1a3f08e92c7d55faafb1906d92292280d96f8f17571759af0af3e76c. 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/NLCK42232172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9240c68e69ee4c687e01e0651d8aa78c850d57042ed3c545f096dcd86975ae1f. 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/NLCK42213102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8821f4e9a162b46535fbef6d292721c274f4dec17e5181aa11ce7149bda2d66c. 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/NL9WP2400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x910da80ba234a2ba02217ec9dd891ca121779f74d072343452b29e8cfadbf1ec. 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/NL9WP2400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01bf8381840141a582b8c6e2079d338ee4358c457fed8222627e5bda01525f42. 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/NL9WP2400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ddb0ddd430be7f9d03131ae16a0c7adcfeb3cca777164282f530fbea69dd2bf. 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/NL9WP2400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x284e292c50e88b12b22fed47dd03e3503bebedaeaab1286669f80c0e2d91a5d8. 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/NL9WP2400009.