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 0x4585c2cdcda2a6641ca0a43ec29f735d5caa5ed4a4dd4cb125198bbba7c9b8c6. 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/e2986c9d-4306-4256-a355-ba0cc27e39b4.json and https://artists.proofprofile.net/proofs/artist/e2986c9d-4306-4256-a355-ba0cc27e39b4.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 0x8ada30973452bbe25baf9782b5213bbfbca60732dbae71d70fb29624e5c33ec4. 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/JPWP02100436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03e595da892c12042082c94f6f04c684a18618b8d4a6f337083e8b255a44a477. 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/JPWP02100476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9205370ada584827197a0834700078b2d5d7ca4d3e2118eb4f883350e070831. 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/JPWP02100527.
Small Town, Big Dreams (feat. tofubeats)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3158a6d0994d7b6100467f16e1983e7a465478234b864b4a84c2b8302622ea7a. 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/JPWP02100528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3277703a5b7eee17a9859a8e284e77882ec117d47ae1e7a241cd8972b5efd0b. 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/JPWP02100531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bc3b29dd161fd4525dced393f5d121638330bba1eff84bf3c2b923062e8a50c. 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/TCJPX2345384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe245b6f51888da64fe7570c7ab34e1e8359a996784da47b54e00f53ba7d2ce45. 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/TCJPX2345416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5a4b50f0ba3f6e563c2f04a308d87545531f19060e512b792731e7e26a5bb47. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/TCJPQ2290212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ce21025ed5f3e7053bf7d5bcda446a781b742955e98b3e1cb5a337081f2c497. 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/TCJPJ1961718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3d3f99c321d1114237f2596ee3cc41c3f4cad4ec69b1e4046f42d21a83d0b39. 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/JPY202300124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca530124d182ba57c5d1ebdde528bb9e6bff9cea8a0d6d8842d5d86739502702. 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/JPY202300120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1954cd5878ab4f5dd68e6fc63458bf8c05fb9f3c416766ed72e9bf7d56e6cda. 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/JPY202200209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03e595da892c12042082c94f6f04c684a18618b8d4a6f337083e8b255a44a477. 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/JPWP02100476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ada30973452bbe25baf9782b5213bbfbca60732dbae71d70fb29624e5c33ec4. 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/JPWP02100436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x136748910c7263abfe568a93288d8e1d1d5e78a6083c110a394ad365b22ea755. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TCJPM2025328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6080fc640ccc0d59d58bc2dd859b4ef7baf1864f475ce6b98c420923bc875e20. 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/JPU901901359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbedf14d1013bf161b45406c57751056cf686f537430c1205b47133fdaaef312a. 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/JPX601800130.