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 0x705e8faa8afea6bcdbe9ecc1b5dd5d367d80a15588ae0e595e06d704c2103bfd. 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/7c7f1ae2-5334-44de-be6f-101ae7590523.json and https://artists.proofprofile.net/proofs/artist/7c7f1ae2-5334-44de-be6f-101ae7590523.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 0x6b211c85c56fa0d30616a6209ac10ac42c74d916ef6413549973c47c8dd92dec. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/QZD441901391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c794e4545cb20df417fd9619454691a2e121fccf9a8142643788a502b9273d1. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:43:01Z), 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/QMGR32051810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11fbeeeb65a3855b824d684d3700094f10f556223bddbb797e236f00d0f2da5b. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZD441901426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11fbeeeb65a3855b824d684d3700094f10f556223bddbb797e236f00d0f2da5b. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/QZD441901426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eeadedd9943b204c4e9f2ebbc5bd42fe977fcf9d90b854a46bae4f2dabce178. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/QMJMT2002851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2b070ac9543e3c41edf0aee67975529a83aa5cf7750b296f788b664910d5806. Chain 2 (Bitcoin): anchored in block 956425 (2026-07-03T01:28:11Z), 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/QMJMT2003022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e12e8a69ca57f1354dd8c1e49234e3c4d86c7518b7766f8e1d578ffe1d4e67b. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:49:12Z), 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/USUYG1557003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3259bf004c23c93356f6fbcbb0a95e63668535f0d076263a474b6222804d3f2b. 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/TCAII2428269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45f23731d333f0294ff566ff598c90f90cb77d54739092aacbdd759f85d017a8. 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/TCAJB2426940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x541a3cc7ede5eb168b930ce26b31a7cdbd4f9c9d621458c7d3342de288c5873d. 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/TCAJB2426961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb306a828f605e8c7ea330a2213776c52acff8dd1fbdab7a4d1945d93eaeb83c. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T19:01:40Z), 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/TCAJB2426966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd80d434bda1bcf1f77acf32f13c4c0bc219ae502d0b488d9c712e9ca59aaf5b9. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/CA5KR1953669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa50d89eede9ecce2521838967e6f8344a2adb53f5c00c36ec2c59901ca3c345a. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZFZ41968092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa9870c7755225371f8149ab06fe3004b5214925fcc90696c490b555f1a6bc62. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/CA5KR2392721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7bfcb69591b4595bb674588853611a01db6772c3a35976899c6701fcb551c54. 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/CA5KR2352494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92ed78d8e6e8e75298a70f454c3be59bac55b408cef9dbd2a8c1740f02f87f21. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/CA5KR2392731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x814db9550a77d50cfd8b6259cb13995ae18cb285b552859c3e61357cd5c2fded. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/CA5KR2392744.