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 0x6f05ce2fe3e15683dd79e21eccc929ef68329b9bbc0dc487c8579cdbbac59dfc. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/88c2ca15-7cef-4bb9-b871-aa99ca2f109c.json and https://artists.proofprofile.net/proofs/artist/88c2ca15-7cef-4bb9-b871-aa99ca2f109c.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 0x9748278952cc7e2319fcf37e50c5f1092efb6af8957ac7ac22a368d45c48cd8f. 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/HKG732157175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2abc2dade6dfc04cf2e383f17624bce5bd692723cb779818f18d0e16218342d4. 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/HKT251311403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7761232ac046579f4cdccde9a673bd3eede13b11dc05903b321a087c0b50172c. 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/HKT251311404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x963a5f50d8aaf99f3e82c759151c2ab51777fc8812f1806a2a89d26cba511db6. 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/HKT251311405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49ff1ac2323b5fc3db31bd09fab945e9196d820d1967b8bbb1c4ce9e7c3e60a7. 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/HKT251311406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e26b22ca97c81a2b33dc3ea4727a8d7ad91e902d3456395d8611cc53ed6c63e. 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/HKT251311408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31219bdc9e981cabb667c6048ddb139a11b11420b4304901b33d94528e4a02f0. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/HKT251311409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9409e74a7c6bc1897f5400175e242475aefdaa1a0dbd67c66b43823bbc812bef. 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/HKT251311411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d43a805755056648593bebf78bf5e5c30f7339e6c87addb6143bdba8c10c3e5. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/HKT251311412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17a356a953d2b527e39fc8594a0cd05bf6a0c662b8130983fc30497b7d466279. 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/HKT251311413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde4882f3ca518da52f8dfb9a2a26f5a96dd4d5aa51b8c6a689875a2a5a87188f. 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/HKT251311418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02c5336b0d07d13f36b3f03e6bb196fee9105d14c4f2ddfa516da5893e7178b0. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/HKT251311419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x354e5458866f4a7ae57a649e72eb9427cb42c062b3a09d7508087121bc47cc00. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/HKT251311422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe80801c1e6ae225fb7be3e139ab588d39ac8c08e61673af35194ab624dd750ed. 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/HKT251311423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd457ada7c7325a09322ece2b798b680cb11986ddf5fcdf01970a9e9d26996037. 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/HKT251311424.
Party Medley: Choc / Come 2 Me / Let's Get Wet / How Deep / Tonight / 再一次 (One more time) / Nice
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xada2711192f3b9751280e0982391f480726ca492918b912539833ea00f8761d5. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/HKT251311427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72eb3f051fc41941bd54e6392e305f0bdb7aaa42cfb83287c1a69afbb95c89b5. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/HKT251311430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa162757af9cdc71d275aa554c36c1835497717e51841f7c01800fe67948a9a36. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/HKT251311433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66dd973acca20360209e4dfa9df152b17c466ecedb1067f23b1ffa3b7a9d0421. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/HKG732313696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf01338380f90f5cda2b8f26e2293952f34459397a0cd78578cd0527460b8a223. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/HKG731718321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16f7c91236d8a59c38b165bbccc73331bf68f7240283ee53c9f256a07a2db650. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/HKI031500012.