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 0x7c63c84afaa8c693f006ff2c619e9279dc171456d851b7ad2aae69c8585a6ae9. 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/1aefb6a2-fc8c-4af5-8233-d3561ec522b0.json and https://artists.proofprofile.net/proofs/artist/1aefb6a2-fc8c-4af5-8233-d3561ec522b0.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 0x6fdccfe3f2a05d388a2106961200b1fcbd7fc5aa24f79c74d9d70f7eb104badf. 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/QZQAY2360891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca81dfb0dac2e5fd89f91a1c786ee3f8c0e2ea8499eb1617bc07df73b30d44f5. 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/QZQAY2365540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa58a9ce47626caaa31bb8f3c7a30ac85ccd1d61a9e3cd435b299f5b4e986ce66. 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/QZQAY2361549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75456daa90bdd0c334417591aa8902cc1892d189497bf671fc9590529cb8bd11. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/QZS7J2392162.
WE CAME TO BRING THE FIRE (LA Coliseum 100th Anniversary Anthem)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa56949280ed0786bd97f5988fd7c66f1402f3f1b7016afdd7837f61620c3c528. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:08:21Z), 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/QZTLA2481578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b00238adbb05333c6fb14d4457be4e2090318cb72a1cc6994bd460c66520a6d. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZQAY2519880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f83ea5de5122454ecf3378e9c64922d4d8b9c9c7170860fe67dc59671f3d2ee. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/QZSYP2523320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b00238adbb05333c6fb14d4457be4e2090318cb72a1cc6994bd460c66520a6d. 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/QZQAY2519880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87592a1e56a7aea201733f005fd34e00b1791993ca32dabdb4011e2816154ac2. 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/QZTLA2545609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f83ea5de5122454ecf3378e9c64922d4d8b9c9c7170860fe67dc59671f3d2ee. 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/QZSYP2523320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b00238adbb05333c6fb14d4457be4e2090318cb72a1cc6994bd460c66520a6d. 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/QZQAY2519880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e0fe071de19a2ff55e5429856cd18b41e31644a0813502265f0d7e502b3e8f3. 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/QZQAY2558617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9853c8a1ccc6c0c514bdad7008d6df07e5a618599f89ba0880c33b81da1879f0. 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/QZTLA2595541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87592a1e56a7aea201733f005fd34e00b1791993ca32dabdb4011e2816154ac2. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZTLA2545609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b00238adbb05333c6fb14d4457be4e2090318cb72a1cc6994bd460c66520a6d. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QZQAY2519880.