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 0xae0b695db893174d8413f217604b8de7ce67f529fe3a58804ae1c5344e8f669b. 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/13341656-a2c4-47bb-911b-c2da91d78a3b.json and https://artists.proofprofile.net/proofs/artist/13341656-a2c4-47bb-911b-c2da91d78a3b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
King and the Sting : The Album (Original Podcast Soundtrack)
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 0xf88cf5198d0a88289d89532d5aae3f590c60403e9a8cc507dc3b66fe515d9442. 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/QZNWW2034655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad34d592db9dc34b2ecea449e1b479a54d37827858d7886310b7c1371aba3821. 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/QZNWW2034656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8317abb0c1102270c827ba1e240d960d10770c9b6f91c585a5bb687f68fac5db. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T21:33:29Z), 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/QZFYW2146024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f1bd22c8a6d5ddf9d1da8f511d09574f2069fa172c76b750a0e0f1bce5500d3. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZFZ32244533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x409547d0ff0961c98f3e47fbbc24d120f8eece6b0b2292a9330865f23efdd607. 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/QZHN62238247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x335e4b887e7fac147cd73031225ac9aff504638bd066d0dd180ec67ed627ceb2. 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/QZHN32281628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fea832a00c0558ae494d80c17eae2e367cd155a8b41a829cfbb5db2f06410fc. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZHN62238250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbac3c6f3d0cef6711f66a5e16dfc755b463c7e17e8798ec8a197f75ea9e6cd4a. 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/QZHN62238251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2674019669779d77770f6dc3712cfc03e8ce7960902e80ea6351e98fac037150. 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/QZHN62238253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x156ee569e5d459a9fc38a27c05225e103c08013b356803a20b6cc6b86e8af166. 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/QZHN62238254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa94825a1ed567ef6b12f0d3a53325de8f47c8700445e8281cd8e65fe118fe7ca. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZHN62238259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbf34dc61d9eb1cd229654b165de8745cd03b5c92c0a696ed8b1042f0caf1442. 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/QZHN62238260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6f4878153f9063fd5f98edbf2e3301e423f9d732baed2210a92377379d2d463. 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/QZPLS2413643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa12a99a6f040ca765b388912661dfe66a7d7156d444386fa4769270ce88fa01. 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/QZHN92505850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4bdc7c4a5be86ba82a9c7e61dc8e1e45eed389762d96024aa90a6499fa0b4b2. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZK6Q2529132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f1734bb1b108db5a6eacc1c7519741511975f64351c4eddc953210b4efe00f3. 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/QT3FC2504412.