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 0x555046c194f1a3f9bd9686bd3b443ef575ce85716e6cb04f3f3f5eaf5c91322b. 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/92971c2b-e056-4dd8-8bed-6744b90a4d15.json and https://artists.proofprofile.net/proofs/artist/92971c2b-e056-4dd8-8bed-6744b90a4d15.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9d9f96a611621b877871e4df76a81fec09bb1da68bae139f16005ea97ae51a8. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:33:17Z), 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/QZES62079427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32e20d9566eb335b60d85a07265965d759641a9ee086eaccd07b35600518fb65. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T08:56:26Z), 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/QZES62079430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb656e9ef75947b52ea65b18cb485b78d10b55374126596ac5394c31b5eb153c9. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/QZES62079432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25d680bac4965c1e54cdf46eb177121154bc19429b7099d63c6f774dbac3757a. 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/QZES62079434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x791051cb3dcc45b8017cbd7b92ac2642a1714e5af3ffedb9e940cc26b22acce9. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZK6P2091321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4220706c6c33691dffc925173c00410a4198dd3622f3433b36f1901654f893e7. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZFYX2118780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1da32ed95f5855ece3fcb385ffe860fa643d3dbd735745f936a00cd5b9c16e56. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/QZFYX2118783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9559dc3b0c78f972c651724b3717a36b77a0bf91e3a13128f2109803c467da2. 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/QZFYX2118784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc75e72230764857a9561a1d41adea91d49208b98074dfeda5fa717b7babcc765. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/QZK6L2137388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3336528e7cce6a856bdb83e6b9bfb394727862d12b1ae08df4a1882353869c7d. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZFYX2200359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba85abadfe56571e511d6ec3d69c74e9e65531b6067d1345b408c042b96cd20b. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZDA82210442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6be08ee7dfbd5a47a7865a9f5a3b931deffc8aa27472985b1591138e9cf2a12. Chain 2 (Bitcoin): anchored in block 957561 (2026-07-11T11:41:29Z), 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/QZTBA2206562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda9ec42417751715fbcfe3c8cc2aef1c4854137e1131128302a94fd8dc93c93c. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T01:39:03Z), 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/QZTB92307583.
Bienvenue à Jokes Chapeau Maman Magie Piano
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a119c4c2acfceb86f64d559e453b7d8357f275b083c77c835032c71f879d20b. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/QZTB92307585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x999ff4c844dacec2135bae53c65eb0459ef1eabda3a4fb36d28860f3e32c1e49. 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/QZTB92307586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3925fcf73b0b30741292ea40828ae4c4400c1fcec7c92c860e159b4695c8b874. 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/QZTB92307588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc669fa2e5e2ceadc6c9609a938ceb09d64c6f5217928f60c224ece9f73cab29d. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/QZTB92307590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3e952cf54ad121bc53b0f2f0d82f1345155ce680ec64764dd78ec890689002b. 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/QZTB92307593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7403d46c522fb8f11e09577f5ebf39a97f5359f06e1d990f42e464df63ed9969. 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/QZTB92307595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf54ddaae8b22a484218b3dfdce0b0eb5c2eb7b0fdf38e415e8ceaf0d4bdaf0a. 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/QZTB92307603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x339f0c22fb04e8f28a34222168898bfaad96311079d5c59719f96ca220017ea6. 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/QZFYY2466153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fa71834461b799b3b0356c5681a084f06fdfb02aa9dece1fb81a20fb803d95a. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/QZZ772407476.
Today is the greatest night of the day and tonight is the greatest day to party
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e9a3f6eeb8d2c73930a5863f2574c16cd2b108bfa7a255d93b301bfd20decb6. 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/QT3F32456395.