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 0x0084dc4488683fb8f766dc79d036cefa9fb5f3925f12b45446f924c9d4c9e412. 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/5e09b7b0-4eab-48a6-9caa-824f61b5e5d1.json and https://artists.proofprofile.net/proofs/artist/5e09b7b0-4eab-48a6-9caa-824f61b5e5d1.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 0xce895af2be48beb2d992e1b5e91efb0ddbf64be8ddfdaf8a03dec3dc645ef4fe. 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/FR10S2438383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc199d6fd78d72f633fd765b41faeb2d6d221b6e47d4a08c74c4fad73b5dec332. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/FR10S2401584.
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 0xaaa074f2c8ba819bc629933832552bd43dc3f942ee7a4a9b56fbaaeab3b11731. 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/INS231904265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x260284aa035a79e76905fbc5802ce269a43d8277fab9509a0e210d152628429c. 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/INS231904266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2321b474c49c06de99e090b541709187443b313b063fdd5cd96d052788100bf0. 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/INS231904270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70e4a1295994d489f5facb1f91d828dc2c1745b94bbbd1a03ce577efe2d4cb65. 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/INV582002582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd023de30a57b904f91e5e2fcbaddb5dc0aea8b6682a0980a47a2a4791164fd1d. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/INV582002586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x607e2fb960de814c4f99a46ff40069af0b6e1da76e4b7196d7cd2e42bc274dcf. 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/INS7A1612572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33b8aa9a6b72d09718665025088b490ee3e1fe223d536af955e3346178eddce0. 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/INS7A1612576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71720382267c6443f616224b703483016160fa835ec6c5d91f22635206342282. 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/INS7A1612581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x922f616f2dd21fb1248dd4dfd16956b798189fa05eda0bc83e9d5edfe73bca8c. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/INS7A1612574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6e4cfa921470b2b3de8646bcd04ec0dd7de64ff7510a7889a1e8184485d4726. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/INS7A1612575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86e184edee605873bc96d5b0e877efa8b88d1bfe1eb88b3f2cce53b1d22ee439. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/INS7A1612577.
Chathi Puja Kaile(Maithili Chhath Puja Geet)
Chath Puja Ke Geet(Hindi Chhath Puja Song)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe16f81cba1a8b95fd6768b68d2400662e834e7ac1234d42e8bf3ce8797f498ac. 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/INS7A1513044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe15b99ab57c53a99acc33f12896318e7e8dc8f5860e18a71e843e9f370a9bba1. 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/INS7A1513045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bd6890489c35018921a8ccaa31518eba4f65aabec5a91d9bb4aed4ee1adf20f. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/INS7A1513046.
Shyama Aan Baso Vrindavan Mein (From "Kabhi Ram Banke Kabhi Shyam Banke")
Shree Krishna Janmashtami Special Bhajans 2020
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03c4edf0d8353a9c944b864ad5685686195a78036d112755cbfaafc052902c32. 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/INS180021416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x069c3ba7c4616151116a06ff2da0ff00bc2e054cc8bae8cf90c8f08ee65b3b46. 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/DGA062450043.