1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x30914249f96824025113460d9f635fbb846a8f2476f1236eb2cfc0feb864d39f. 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/f8abaea2-52e0-4df8-a846-5618adb19f9f.json and https://artists.proofprofile.net/proofs/artist/f8abaea2-52e0-4df8-a846-5618adb19f9f.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 → block OTSBitcoinBlock must exist at that height 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 0x44b76b38895ba7271489b05d564ceabcfcb39763885c2259259924fb3dc797a2. 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/FR9Z62100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc130e8d30f90c12a26f916699d9b31a67470b682606a22b2bd06603670b2a16d. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/FR9Z62100065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9607b2d8bb4da6d58a090c8de702a9de2b0a703a125ca7f55fbb8f01eb0b793d. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/FR9Z62100264.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2e7753367d97f9c42de6e973286c484cdea525e19c12d8fbb7716a18478fec1. 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/FR9Z62100682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc657f1a88b89b9c57465e818c5d1f8e2ff74bef2a449548938a4784e4987a1c. 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/FR9Z62100687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84295ad787e8992170185dc05e7bd633e6030ab9361737a357296bee7e27a07d. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T11:08:11Z), 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/QM24S2302903.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb96e66467eded69246514d4ce3073f651f6b2d611af394ef447ac5a9a17c926f. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZAKB2436287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83abe0199535b32e92de779b9888a0dc247e60c1ab4322ee1f2d82d739ce2ac9. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QZAKB2445377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50f827f3dedb8c7a0486fdbdd08e10e2153f8a61e5ea485340c0a679721d978e. 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/QZAKB2452500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06683f6d17ef0909962e988bcd63213b17a592af4c9bcf1028f71f6ceb144a47. 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/QZAKB2439190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ce6fca1451373df1aa2afd9231890f73ffc69c7ddcb40ff3a097251f23d3a2f. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/FR9Z62100495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fed0cc6a6fd2d4582a3dec28d1e8591bdde6454c61686d4121e3eae9b8ee3f4. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FR9Z62100068.