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 0xe4ba823e6287d594224d51a08ae4be61535dcaf379da39fb05b46311170a5299. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a4509472-f686-4142-bd35-934a21721a7e.json and https://artists.proofprofile.net/proofs/artist/a4509472-f686-4142-bd35-934a21721a7e.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 0x142883416378f9731911f10a844775b71d93714b76689b686f7264858a0cfcae. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QZS652309890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d33a536771fd95c2b6fe441619283ae60d7c92c6bc5f295c225b41d5d9cc226. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T17:25:52Z), 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/QZMHM2393897.
Tallava per Naim Hercekin te Namon Bossi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bb5a5a9f52a462b46fb31c6a17a039c39134fb43eacc091c3116bff067b2c7b. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZMHN2304882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1cbbbd4b144cefd7138a1972e080212d41bd7a4b35287814fa93c4b29daf942. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/QZS672436870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa24a6a09d1d67ecfa8970cd39a735b61a7add6d78dd198b05180570353002e17. 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/QZS642496244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d3aeb4da45868622acf15125411751682624f58f0842b25e961dabde96e396b. 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/QM42K2490914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddec7fff91678907010ca773ef01ba166b9e3c832597574b918da3057ec4ad97. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T20:20:09Z), 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/DEUD42432392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9e1918f36d003edafba4a30aee8e85e3d2834cefb423f814b6d585ab4911144. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/DEUD42441046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12fbfe57eb0e269c4039b16773661918026577c1e435fc3ebe04ce3ad6663cb4. 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/DEUD42447351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cde73d1ac59ab46ee7427ce49d81b4348437acddf7887c4354004c1cb1a15ef. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/DEUD42559013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d81808d5d82afdb678948e8ab87b9e5dc1967c780c5d32945e1ad4c88a4a4ff. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/DEUD42569515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc935ca904a8e0b88d1042f7566850a0d271e2d8674456e1145c68a99dd1b6d97. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/DEUD42577227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2c78d090ca5a9af160604b7554a152000043114e124e29b07cebae72052250d. 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/ALA082200321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d5acfeec6f25b2868657e35dbc27464f735ede49d437aaaf9aa42b456ae6d71. 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/QM4TX2436370.