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 0x656ad4c90b30af6041bbaa92d3081ea2ae6c1fbd351cfc420fc67c15826d068f. 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/b380cb8b-162f-46ae-90e8-eac51ef09cfb.json and https://artists.proofprofile.net/proofs/artist/b380cb8b-162f-46ae-90e8-eac51ef09cfb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Agrarian Journey, Pt.2 (With White Noise)
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 0x360e2ab5acba16b27a12ba7bdd78f73bc48b279ec3ccdbf5191a2cdc7561963c. 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/AUMEV2021356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc849da1c880ee2e48b957afd3fdfef5ed92f3e18d40faa1fca1640323b045ba9. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/AUMEV2025792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc849da1c880ee2e48b957afd3fdfef5ed92f3e18d40faa1fca1640323b045ba9. 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/AUMEV2025792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6eb8ab36a6eeaad031286ba68c3b976d98dc5a86f4f1f4281e53f673d68acf18. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/AUMEV2133240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd357bb84c4bb8197e94975c88631fab42f7a40fd181e1b6a1c6fc2126fe7ced3. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/AUMEV2150948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7266389eb05dc5d10ebd64482fac5af21e3be69783c77de612453afe3fd462b9. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/AUMEV2211582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04301351cd570d6f6d18d1316eda0dc738feea2979b37101829c7f14146b233e. 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/AUMEV2251955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x352a5d87ac19fe658388c15208c3877e6c171383378a21aa80bfdd40a57098a8. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/AUGBT2226582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x899e9914c89748dd5affa26cc40efef405a6c9bc2d168c4f89c0191d39406bb7. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/AUGBT2226604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x511d9cfcc3025809aad90f951b53f317322866ff1533d349f3322d44f72f7f52. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T18:53:06Z), 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/AUGBT2216112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31457a483ba654b0adce16f3255c1e7ca973e1acf7678d08d53ff387c857251c. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/AUGBT2221128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa3d7d4d2f8305eab023052007989925183a21de5e4d67101a95ccb27fbe8ae1. Chain 2 (Bitcoin): anchored in block 957546 (2026-07-11T09:35:53Z), 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/AUMEV2425343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff839f3d44c6818b5d1c1513d18f80475b0d334ddac6113b01eea9d95d7076ea. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/AUMEV2504817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b44f81ea5696cd60a804901061a2e2f5ea82f483e4db19072ccb64e8a7f7cba. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/AUMEV2504819.