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 0xbff0512e2ff2511a3b6fc5ad18224605f147dea71fed901433d8c5d241e5b7f0. 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/8bf464ef-a08f-46b8-a702-6e149aec5fea.json and https://artists.proofprofile.net/proofs/artist/8bf464ef-a08f-46b8-a702-6e149aec5fea.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Othakada Othakada Machan - From "Pandiyanaadu"
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 0xb343361654f7c4c83d1a8db3c6b5194702f44eebbd5316b261532ee4b4868ed3. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/INT201300502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2afeb564629e71241a509370f45ce721d9d60092ce1022b4682881d19d00186. 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/INT201300465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x136dca50fcd93acf3a67f9bc6ff441b417f7649598e3055d5563f8b28f91beb0. 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/INT201300492.
Fy Fy Fy Kalaachify - From "Pandiyanaadu"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4d16a5c665c870bf2ea3d3e9caa1f8cdd17683d336d8c45eddc1460f3b19965. 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/INT201300511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7b93b300740f8e132d5ae579c5d827a0907285eb73b7014a85cd16de7902fde. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/INT201300479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d18c2ee6e7211d0f85900eccc1277b1b037cd036e60f2ab8eb421837e53317c. 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/INT201300444.
Enge Ponaalum (Prayer Song) - From "Idharkuthaane Aasaipattai Balakumara"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45058fbe73b5f71b5c0d3048ddc9512f91dbaa5c9c8fa3e6f4583a29727f59c4. 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/INT201300491.
En Veetula - From "Idharkuthaane Aasaipattai Balakumara"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64d9a3878cb2eccc33f9d32497b818b889608ae43f2f3534e06e8a797241bd72. 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/INT201300499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe489f9c229313e05cfa60e1a492fe51428cd5c768e6d7717b3623d100612d4cb. 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/INT201300496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81ca73bd3efa3b0588c49141ac5398ad5d26e9565a21ae4d6bfe0d5c632957fe. 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/INT201000207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x247d33bf0710bd3dfe67010c79d6b62eb611ec936bddd72349b8e8d060928b3b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/INT201300570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc5e01b4d29a767cb4688ca030bd2ea9ded9686dba0d73f5c4d692050ccca583. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/INT201100307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1234f9c43b43168f210e05f1c6083e2538e950597375f16edcd96ddd55bd81e5. 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/INT201000206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8f937c4b6871589af5940016c8db46945ca2577c5a376f39aed54e9cde7a35c. 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/INT201000135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa772f7b69d70c472e404416a56e4461af5c45ddad4ddd03dee368d492ec7ae8f. 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/INT201000173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb6d264de5b70bb0361dd8236f8cc10f5fd3a91f7d6ced2dacf662ecd1fb1fb1. 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/INT201200353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4389ba1e143344f9cbd10727cad53f52b832fd184de77a06a68e48ac05d70325. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/INT201000180.
Thodakkam Mangalyam - From "Bangalore Naatkal"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed496fe98982be249d804f37a4cf6ed8c97afafa8d7ac95943410a8542ae3a86. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/INT201501078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94f782779e649ea06c0ca269c958d24ba015c4ea6d5f53a5f7721e1d4f463dff. 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/INT201300472.
Damukaatlaan Dumukaatalaa - From "Koditta Idangalai Nirappuga"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ceefa05cec30ce38310832d54d655f1899af80005c41ff6571199b4a59f4369. 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/INT201601277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb407fc038289499ddcc89473e18f7c0364b2886a455c6a61afae747e36b167af. 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/INT201501026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7b93b300740f8e132d5ae579c5d827a0907285eb73b7014a85cd16de7902fde. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/INT201300479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa64e54457c3ed89f7a54ab44357d16887641a36537d46787a8446bfaab0d1390. 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/INT201400781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb343361654f7c4c83d1a8db3c6b5194702f44eebbd5316b261532ee4b4868ed3. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/INT201300502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1234f9c43b43168f210e05f1c6083e2538e950597375f16edcd96ddd55bd81e5. 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/INT201000206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ee68c6014143eaa54d4fea6cf98550831af34ce87ab255b5c562827d87b321d. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/INT201100296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa772f7b69d70c472e404416a56e4461af5c45ddad4ddd03dee368d492ec7ae8f. 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/INT201000173.
Burma (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0195124f3d2ad597d718d37464ee4da2ae0cf772ac2921ced5054cd6503433bc. 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/INT201400724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf10810638dabb184f83289194799d8f4f77592f4c169a88d63a517c4f717a4f7. 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/INT201400725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5310da372950866ff05c7a3aabc70f0bdc78ba30c3bc2bce3330b1abebe4cb66. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/INT201400726.
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x726b9e0610adb31c5fe47eb6d5912c40755a97ec197f1ba0935869016310d6ef. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/INT201400729.
White Rose (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a6e4add02f7fd2b86e996f60ff08f1470fb1ac37608620e1210d88e88b0823a. 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/USA2P2441985.
Enthaaraa Enthaaraa - From "Thirumanam Enum Nikkah"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fecd1d3dca42bd53df8e5020537986a57eeab66b7a56489e3523914c1a3161f. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/INT201300564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x175ec754169aa696e8c3d3e10bf0ca613cc09ce8880d097a0f700776473aba28. 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/INR831900127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x250497a5eeb817459c3b16bf69cd43359680edad8b4c7922c8873ce68ea54191. 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/FRX762006492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7e0340a481be1b016670febd12261d62b225eba6cee597aeec83b1021621060. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/INR832403064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95304800cd5be8558fd2e0c9c5ff1d2a79df484567579b72cfc211387990dd3e. 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/QZHN92582998.