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 0x03ee8255b40ac634cc1116d28f483487e145ab11ceba044626f34abf0a309dd3. Chain 2 (Bitcoin): anchored in block 953626 (2026-06-14T11:41:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/23942445-e73b-4c39-a4c3-ddf358d6f3a6.json and https://artists.proofprofile.net/proofs/artist/23942445-e73b-4c39-a4c3-ddf358d6f3a6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ruído Das Ondas Do Mar Para Dormir (Loop)
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 0xb860e35ded9ec0cef006bb79cfe9bcba9e6e516ccdf18a8aee6f8f9d94360151. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/PL50G2104493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11f813948aec7dfa17558de0a8908ec5a0cee7bdddc014ebb97ee622c6ac5907. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/PL50G2104494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe23fb5c98fc392f6616bb569353029e932c0e8dd6ccec9480cf250d329db6bcc. 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/PL50G2104497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc165e65f382817ebd01298fe9847c695eae995277ae66d1c5445669c188e4b87. 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/PL50G2104498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0870726152cdfa8d5a81efc7aec034268ca96f03781366017e225e5cb07eccfa. 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/PL50G2205708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x539a55f356890f430f0378f02ffad2fda4b2eeecc488639e14cce1cca6b4ca19. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/PL50G2400809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a60f6755c7b13aabd7268615b3321714d91d12d7798fd0384ea015eb527bf92. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/PL50G2401833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20326170b47c6b2d6e82f82b0f836e1a40b091a3fe8a125fefd4c530d889cfc7. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:35:58Z), 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/PL50G2401834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe20e5dc8a5ec9532989ebb49f77ae62b0b20fbda7038c500f4bc6bf2fdc0606d. Chain 2 (Bitcoin): anchored in block 958817 (2026-07-20T06:46:13Z), 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/PL50G2401835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x542a23b0bb8fd9a977deb55fc615681e6d3a95955b7b397e9f4bf4479f3ced52. 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/PL50G2401836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d5d0351e107dd2439b5610bd8c8c1df0e28077829378623c57b956adbdee2cd. 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/PL50G2401837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x656778546b7890fc20cd0b7d1c2a9d0576c294966e3b902fb7186e1eb33195cd. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:20:12Z), 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/PL50G2401838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cd0c9b1bd9b1a5cc6df6c82c93ce5339fa3e1d729bcb4539d97193cd2567743. Chain 2 (Bitcoin): anchored in block 958529 (2026-07-18T09:21:41Z), 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/PL50G2401839.