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 0x18f8b43ad64cf4bec16fb97a03f073238580c82e15865654be94aec4adfb2e9a. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d84c5567-1c57-41fe-a8ec-097ecca7919c.json and https://artists.proofprofile.net/proofs/artist/d84c5567-1c57-41fe-a8ec-097ecca7919c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Heavenly Hell (Deluxe Anniversary Edition)
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 0xed7a8c0eef8a8732dc43727f60741a0b61c762e3c306fa03b627eb8467df79e7. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/ES5700901237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e73cf8c317c0a67fd09f6349deef95514e6f1460d21b360ad741d693359412b. 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/ES5700901233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfdaaf856ab191ffa33f1f3044dbec0571c6ee9b2193cca734765485f027a068. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/ES5700901229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b8b29fb55ec03d3add5c1a1e347102dfdbf4dd48a11d8a764e631e70a35c52f. 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/ES5700901235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12a51ef962226e422a887de8ed9afbb7e1a1355640a9afd13df143fbe00e72ca. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/ES5700901236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88eac0879533e13bc53548355730e58b03942b89476937068120a16fdfa7ec12. 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/ES5701001263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f83761af4f840e6e2942b7da43f9703e8f4d116a6919cc1eaacde1b55938142. Chain 2 (Bitcoin): anchored in block 959089 (2026-07-22T03:51:19Z), 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/ES5701200105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c0c11fd33313251d6584ea93af40740dc2ad081fa4b890ba682b71b01508483. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/USCHR1368278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58b58cf6c5d8b74c78830d95f6c728c4eec67e7b335be3a21859f99c47f276c2. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/USCHR1371594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89a209499ff0e9aac16423aec15c61a12e945500f369946119956e7a33ca67a3. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/USCHR1371595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8a4a475e37e4580c096c6185f7031149113175ddbfb61e4649cd98fafff56bb. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T01:25:18Z), 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/USCHR1371597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd731138c3230494743c6a20f45db40abef2341e090f2d9f28ecd46d42fa8773. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/USCHR1371598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ee617331030b64f58553893ed9a276fb5fe0e8ce1b1b1150ca9c3bf3bd6d708. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/USCHR1371601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf903644e9140f104647ec3430353347527c1ba1acf24ede6ccf0ec73ba39575b. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/USCHR1371602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb57382261c50ad17f40bd3dc45f1e1383ff9bfda74a82efacb8e47cd536d0cbc. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:03:39Z), 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/ES5021500528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ff233a7bc2fa1deabb6e2537b0852259e116620ab6560d7b8a291873d19b309. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-02T21:01:51Z), 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/ES5021500529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fc5ea4bc00186fa06f119eba48ade64c06a675adbfc768d521d556aa1b3b518. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/ES5021500530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbd5497fccfc3b0f43ba56facd123503f768be3da706c9f31adae24978e5e32b. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:43:44Z), 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/ES5021500531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd673876ffca5c7c3bf966873b0d497c0b9649ab709201551e4362231c3f4e118. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T22:08:46Z), 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/ES5021500532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9611355e8f7f2e4738cde7a11d1a0695a51692f1927f37d195c283af80b9aa8. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T06:59:06Z), 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/ES5021700120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x166f2ac597cdd0d8f5503294a29329c1928127420a7d2c062c840b3f84779ae5. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T20:23:34Z), 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/ES5021700121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde403441373128ca415c6354921ae5d97cbfe629032fe3e367158ce0e17221f3. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/ES5021603271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6436a23f268fdfcf2c59448350a89bf9c5fbbf15c16940bfdf332a1a0814970. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:07:49Z), 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/ES5021700128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdea28bc02c48e6d22b5373a61221bd23f0969230c0a83de186a800576f4e0d15. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/ES71G2104742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58cd57b211f2c08e04899ba67a185dceb97d098eb19702a1ff073aa86d26cc9a. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/ES71G2104749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x836f246d12fdfb63bdf4fc17c087dd92e8f2fa829769f724b18f88ec82fa3afe. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:44:17Z), 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/USA2P2461560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf199391301e3b96af9dff365e10987ee649f160ccac8b4ed6b3bb5410f58dcf6. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/USA2P2475633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71f677e89db04740a51d6c5b1d1c51b25f4cc6e7b7234dcbe3f4ea5e40643d1d. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/USA2P2474753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x820d87bb481b6e2dde200db1f49293189daaf513930ee7c33c2643a4cc4f50e4. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/USA2P2474757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3bb7bd2fa1d84f493e8b0e46a3919499dda50413f1e1357d57e9c3bd72810e4. Chain 2 (Bitcoin): anchored in block 957629 (2026-07-11T23:44:46Z), 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/USA2P2474758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e5057a7f3b7f39f458e6524d6e1c180438dbdcfaf6f9bd5dfad5413ec869df6. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T07:30:46Z), 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/USA2P2474759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7c48a48d04c4c369db14674e1a2b69d349d1bde33baeec3d43ad2caadbc68c5. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/USA2P2474760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e37ba34ea2c0d743055c0a9708155e9126f7ae43c951f7907cd065d3e82e858. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:26:15Z), 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/USA2P2474761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7706e724aa92de12097ccb1bede6ac1353875ed46a5d2144a1c60772f07c8f8f. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/USA2P2474762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f218ce8011e1dc484869aea4e626926c0574965f21fc04b083aa54faf2da1c7. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/USA2P2474763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ffb39812dab834728bafc9d91fb29ab7df9fd00234dc828933c4918a3719139. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/ESA092513168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73d2867c83be87d237c867597777203746cc25f593d9c18fc8df0af5d3e44866. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/USA2P2551427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2886b0b725b7ae7ce16ee93d54d0474a2c1098b836415d11e9787a8e58483f16. 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/USA2P2551430.