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 0x2bcb5c3245a1ba42179b2c10475478715bbd6e52758d7cac2cce1e42eed038a3. Chain 2 (Bitcoin): anchored in block 953782 (2026-06-15T12:13:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d51da319-81eb-4898-bf88-841d7d82a2fb.json and https://artists.proofprofile.net/proofs/artist/d51da319-81eb-4898-bf88-841d7d82a2fb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Annelies: III. The plan to go into hiding (Chamber Version)
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 0x64a787baf6770085d7fe5b092fb5285365c9f48d250e1ec8446c6d1887b97ecd. 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/HKI191254803.
Annelies: IV. The last night at home and arrival at the Annexe (Chamber Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8914a8f7cba52576c9f6fa66dff552c2a7fedc1054871c1471fdacc4dc58e92a. 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/HKI191254804.
Annelies: V. Life in hiding (Chamber Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2839dde4a9094e61463132db22ca8150dd1c2d0c24bf89f61adc1c3404e22d77. 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/HKI191254805.
Annelies: VII. Fear of capture and the second break-in (Chamber Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x688dbba3459748d25746c29bde253b37649b5dc618f00f0e802ea35ccb5ac314. 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/HKI191254807.
Annelies: IX. The dream (Chamber Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8effd9a75845238e5d4c9158ee7587f87c61d35bf5e40110ff178fae8323b209. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/HKI191254809.
Annelies: XII. The hope of liberation and a spring awakening (Chamber Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51884c699c78f550eaea931f6bf3d849fece806838d4638173e914f60ee1619b. 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/HKI191254812.
Annelies: I. Introit - Prelude (Chamber Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5590582ed9555cc1cd98ce6fb16259a6e88e68ddab1b8cd17b62062211066aaf. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/HKI191254801.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Annelies: II. The capture foretold (Chamber Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8924608e35b312818a00722fb0a7f4900d69c82d46a83ac33c75eb318d74388b. Chain 2 (Bitcoin): anchored in block 960349 (2026-07-31T05:23:41Z), 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/HKI191254802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff8be1dbc8b63cd199ddba665993a19dfdd9809767dc464ebd6334d5c1ef1e85. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/HKI191254806.
Annelies: VIII. Kyrie - Sinfonia (Help us, rescue us from This hell) [Chamber Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf88413b71147069a1aeb59fc5b5bc10b054625aa0c5c164fadbb59ff6fb2069f. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/HKI191254808.
Annelies: X. Devastation of the outside world (Chamber Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f91e738680aa9d334a95d46b3dcd4fcee879ce4d61b4db0e0eab6f0544332d7. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/HKI191254810.
Annelies: XI. Passing of time (Chamber Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf53c6b0943ed41171a06685471da8743bacb4b071e86146a51c766f54a8117e8. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/HKI191254811.
Annelies: XIII. The capture and the concentration camp (Chamber Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf804ec9325ca4d1144da87308a7b55b484679d345f7d563d6ccac68de4217905. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/HKI191254813.
Annelies: XIV. Anne's meditation (Chamber Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5c0ff68dd8b20b70fc9beb170bd2fd1958472fdf8c2c7019dbdf44873df31a0. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/HKI191254814.