1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x977c555a6a4127e91e8eeda9795722097b873ccf1c43223d6bdeba620e17dc62. 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/7914ce69-716d-4155-8e18-3a149f64d8dc.json and https://artists.proofprofile.net/proofs/artist/7914ce69-716d-4155-8e18-3a149f64d8dc.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 → block OTSBitcoinBlock must exist at that height 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 0x8a0cb3de80b92679b71f53792f29a885469d113200aee7116ba3164299975297. 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/QZ9JZ1760150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06a75a58d712ba7f1ca5207f3f4d000bd0bd4868979e09c12dc34239d92c050a. 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/QZ9JZ1760151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17555e5e3c2443e77d71d18c5070ca5d2a24aecd5fd47bdbfaa53750187e402f. 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/QZ9JZ1760152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb764d7b48a46c88594a799f43dcc104bafa2e5a3e3845676f07708f88ed9641d. 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/QZ9JZ1760153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb164cc002b25d0bdbe4dd076a40ec0f367cb47fa7e549d6ac3218a0390f6ce9. 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/QZ9JZ1760154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc42645c24ee07f050dfd9307eba3e3d8b5ce30a15a42952a64b05a9442ba5b36. 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/QZ9JZ1760155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x499eab6517314348c3a912ade44909d872e981eff26fa8d795f2648a4a83acb8. 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/QZ9JZ1760156.
Laying Siege to Hammerburg (Noble Houses)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2857a413b7a44358f022621d220a4784485980a8f69910f5b547210cc0d45c6a. 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/QZ9JZ1760157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x809dc71b71546ecf4a8e20ede076ec28672500a53a4ccac43c2e9ce4ff33b47c. 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/QZ9JZ1760158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77679b423159b694e2c74e46c62152dd9fbabf0d255555827739da5b6cc9b22e. 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/QZ9JZ1760159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf82b1390b9f8ed39f8c53e876aa4a7b01ce8b1d4ebcf8cd5b883d77bcac550c3. 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/QZ9JZ1760160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1743fc17e192dc4712f9ee84a1f8f0248920de62d227dad201373bab5901da32. 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/QZ9JZ1760161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x977cf1f89de66af8f9896900d1361e5fbdf482c47b0546a83f1124ae683181c3. 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/QZ9JZ1760162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3329f8eb77fb1081a8841e787fd7b08762d7bd051c751569f0203e8c29d6e5c6. 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/QZ9JZ1760163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3c072d226b03e54e3840a01b0183e1f9493e32e3a58143e775b3e9a11f78ea5. 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/QZ9JZ1760164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d0c5d932a427126b5e2f2609e6ae7b97ec5cdea1d2273f6b8aa706af28907ed. 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/QZ9JZ1760167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe034cc2835f2380f55db22c541c1d4167c32744445e92d0afe39192af72a71da. 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/QZ9JZ1760168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa141283165ede92e8f16499edf21bca2c9e1e4cf589f494402086be0e9a97a7c. 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/QZ9JZ1760169.
Rise and Fall of House Kaltenborn (Noble Houses)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7e323e451bd5270a51bd54b58f3b28d6b8beafd2829ce11e7b2e6845f8be262. 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/QZ9JZ1760171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9b05cdfbb941262d5d57fcbc5a50989f1388fd30046ea9bbf86714cf167f553. 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/QZ9JZ1760172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ea2901d82b31369208601110a3b5eb7ccde6c8f69e1227db9b8955dd6a996e4. 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/QZ9JZ1760175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cdafaea9db58c4906c4a440aa79c6d2c707bbd84d977ef7789d315bb53b1b00. 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/QZ9JZ1760178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54ddeae1913c85a1a1e15ddf4d48e361ad2ead4dfe76631b84238cfc0b02eb13. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZ9JZ1760179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x395f027f32e33d1f85b206f3b677696c2c9a842e954b8bde1a5b1acbcf019c9e. 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/QZMER2094876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4facd5a06aec3addd7215edfd2afa0275b62202a9943a12beaf63fd24039ef6e. 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/QZMER2094878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8effaf92f7b0c840d8aceca8aecd0756565399a74bd5107af81a8b7a52e1aee0. 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/QZES91903289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0235d6ba9326ebbb204d669c99dc0ef96b1161cb321a99a9004a953c0aa7c20. 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/QZES91903290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75eb9e52e6a023a610fcdaec3a29fe45254c1a961f3f1796509e4291d8fd142d. 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/QZES81849467.