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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 0x872f68d5618cbd49a5b5364d0d07ca6cbc0ac8fabb5b76a3c91a291ba209db09. 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/87df7cdd-0913-4169-8d35-62e6797d189f.json and https://artists.proofprofile.net/proofs/artist/87df7cdd-0913-4169-8d35-62e6797d189f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Red Velvet (From "Company XIV's Nutcracker Rouge")
Red Velvet (From "Company XIV’s Nutcracker Rouge")
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 0x3d19b2cd70d95d8fe768a08483a5101c27c0534246ee4c2e436abbb8e8546329. Chain 2 (Bitcoin): anchored in block 958625 (2026-07-18T23:11:57Z), 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/QM4TX1963992.
Blue (Company XIV Queen of Hearts Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab3e3fd6029c85aae64baad0123cd2b851b350014a7a98ae337427cc7be58291. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZ5FN2090018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd151b7760b19f9b9b78c4347323ec5598a5ce3055c89645a1622a0610afb8e8. Chain 2 (Bitcoin): anchored in block 957801 (2026-07-13T04:17:08Z), 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/USLZJ2028214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63744c20cc3ba2e766523defba41431ac7483f36c268e656c73434a3e4940ef8. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T01:50:27Z), 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/TCAHN2343062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2c0b4f07585d9c4388c643995cfd1b7cafddbc3f26ffc255ac358961d1a6280. 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/TCAHN2343099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa25c43250e55fa09ab33d4b51f62dd59d2bd2cbe163f7ab899bc2f1db452294f. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/TCAIG2463612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x775929c5029e5e0d75d5e7a758d9ffd28753c7a7e0150f7f03e11f7929c04731. 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/TCAIQ2464416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26f16923303388cff68041eb4ecd90616ebca25adee485ce3fcacdc3cb59e5bc. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T10:31:03Z), 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/TCAIT2433061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaaca2338df564527bc21d2dcec48680092dbf62fd147845f442dfd887e92bd0. 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/TCAIU2433934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba1ca7fb1c66c2df529d209b80262b92d81c724607bd29b31ed8bce98cd0e0bf. 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/TCAIS2433971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe77df9181133727c773f8d847261cc4528cb3d20ada7260c94fecd906796b3d. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/TCAIT2434088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c2f406be8196d1dfd74c81eee44b71f35b8d4ed392aa5bcf4d17fe010983b23. 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/TCAIT2438681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3dd74aa70659b4db9cf8d32e0891e1ce10199ffdef6e00f09cb03d2f22b3f1c. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/TCAIS2438830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5958844db70f77556d41ef5bfa40b797865f32527b012c6064478642abee0ad5. 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/TCAJT2577974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94400ec766bec1bb6ce6a65b522cd01f78ff309270c2235289550cbfb00265ea. 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/TCAJN2564030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75392df35c776f91dca96d5c1e53a8ccce07c8941e9b61f711b6fb5aa8a00762. 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/TCAJT2578365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30094e35cbf960863fe647243487506e1387659a1f871042a601be6ddce78219. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/TCAJY2536677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30094e35cbf960863fe647243487506e1387659a1f871042a601be6ddce78219. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/TCAJY2536677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x328e49cc8e0d892948cff6302cf6f99d635195f7ce8e0093470fe3e3fdf7f0cb. 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/QT65X2517811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x632aa9a24bb799c4ef87d64d310e755364b2e93e4d2e73a45c0029808787692e. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QT65X2517835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99facfcf43635ea779da5d0f5641a411acbc326b6c535a55e0e8ffa835bbe57a. 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/QT65X2517854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a9011d9dd43969090457b4b81bc30ff71ee1503de387b33b17c6841fedd0593. 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/GBPVV2305174.