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 0xf4abd88d5a06f80e80e819aea8ed65068032ba1edfed6bfc15918d25a9b33a40. 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/d14416a4-eccd-4fa8-8e47-0030cacd5fbd.json and https://artists.proofprofile.net/proofs/artist/d14416a4-eccd-4fa8-8e47-0030cacd5fbd.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 0x1d9d7be73810a4491277fe19363e6dc9928767e0a51d4909d451940ab957e582. 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/QZHN52139769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda4a0f05acfa9e5f6555059fdcb84a25e39c55c1e3a3b597fa1edef03a79ae1c. 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/QZHN52139777.
Canción Messi Se Va Del Barcelona "TUSA"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81e13717bf7b92508de6a10ef0ce70b03c1094f87f7bb3efef235354a82a553a. 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/QZHN52139761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d4f151aed18464c7728a7a4d6e6a0a8557862d9d7bd80483e1daa605cfdd19b. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T23:15:38Z), 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/QZHN52162466.
Mbappe VS Haaland - Épicas Batallas de Rap
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c114e4ef38bba98b3f51669e7c6ad7a0dce74a959567b4a2ca25678fb437a17. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:44:44Z), 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/QZHNB2152474.
Canción Sergio Ramos Se Va Del Madrid - Yonaguni
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19934ff3711246f835ba186223cfe903e8b586f4d0ca2af15df16b2b51f71b29. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T05:50:35Z), 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/QZHNC2155568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a0d689ef9d7adcec374a72f1d711c39ed30b94d7c01deb8d3a2246307467e89. 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/QZK6Q2177909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x603470c40e8a6dc58a6ca604214eb4b093a99339fd367f47245c0caf77674098. 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/QZNWY2183694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb34231b6343cb9bf7f90e204c9366d33ac325a47d3b54ccd199d4e974a024d95. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/QZTAS2158455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cfff252651c682f8b10584c3933c3b91d57055050c56bdd72926f3be12382e6. 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/QZK6F2296623.
Barcelona Fichajes 22-23 (Mi nuevo vicio)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36ae8d96ba86c7139ea902b8c608da39f71dc42b4889b86f8ff30e5d47313c55. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZNWQ2265261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76bedc8b670cfda0d55f850440b20a0c58ee0f165277e63cfb2cfc593c06a73d. 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/QZTAX2215010.
Canción Resumen Mundial Qatar 2022 - Hey Mor
Canción 2022 Fútbol Resumen - Feliz C umpleaños Ferxxo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x186038c5f27243266ebcf67f3a041fec0d5c8b4dae4a9e1b5b29cda85c656eff. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZFYX2311966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bacd2c2744250cc3e59095c3fdffcde705afb9168fa0fba005f1e009bcbc470. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T07:30:29Z), 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/QZFZ22330520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7935e3da1b4994e18cb4df560fcbc16fc9bce9c663933c40d0ec911939cd8358. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/QZHN62329369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f4edc2275e1c49935d9e3eb595e0d443a7dc8250cf5272c8982bfc8aed02659. Chain 2 (Bitcoin): anchored in block 958325 (2026-07-17T00:12:18Z), 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/QZK6G2350114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16b21aa3801d5281860ed9dd6b7162e70934a9c6145992036f07704570cd1a83. 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/QZTAU2370276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14bf72cb6e0df4e481d46d715928ea3591823f0d92d9c8c51caa3bee8a20ac72. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZFYX2456554.
La Nueva Era - Barcelona Campeón Copa del Rey 2025