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 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 0x15469c4fb343309b09694b2c8f8bdd07518d939c1be711a61bab5dd6468c5fde. 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/de57705d-2fa1-4247-a7fc-69f3d702991c.json and https://artists.proofprofile.net/proofs/artist/de57705d-2fa1-4247-a7fc-69f3d702991c.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 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 0xc02e3a159f619794e35dee405868215ee7e7a78f7c76836d4b01ff79d2ecfa11. 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/TCACT1630618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8617b59988b42df8a0b535a7de9fd1c1232661c67480194d3ec491e50f9d8d5. 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/TCACT1630617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21d0049ddc0e0158dc7f5268cadf9d54179885537874bb7cfc1025ec12969104. 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/TCACT1630621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eaae4382987a87bbb536e44fbbef737135748ec3d4d95e911b9e87b71bec3f9. 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/TCACT1630623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f916a5d63a907cadd932969b21eacc91fab0684041856ae673a5c6432e0aafb. 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/TCACT1630626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecc8d02eea8d132a8e29e48f59168b65501d99a9c88f130de8da62603962868c. 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/TCACT1630624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04ee19b4722dbf5c4f0f29136092c79fa20a2599fdd7a969af670fbcc6d22669. 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/DGA062392194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cdd812041f3924ae19f55e03c4608956a3574ba30ebe0449533b384ad199293. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/FRX452385993.
Natkhat Nadiya (From "Song of the Rive Ganga")
Natkhat Nadiya - From "Song of the Rive Ganga"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60ac66d169f69ab10fc6dc5b0ec7a7fc157bbd1563cc13aa1f932d7fa57f8b4b. 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/FRX452275760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9af76c98e67bd435d8005a304a81145f25a432f98a2e08ade902c79c8932a954. 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/FRX202292486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66ab4bc5c1ed3652504486a51c815457c4164d628484a70d3ffb739dc5f89aba. 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/FR96X2200510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc657e06047bb18c23c9dc056fc8e2c60cf7faf3ff3beb663bfca7bdbd69af5d. 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/FR10S2217988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x299ac5188d0c73c449108b1da6307b284b698634ac06c0befa493734cb5d5358. 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/FR96X2039220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e0dfe9a61f1a49d7f6251017726b7dd074554f09b4febde442fe10132e7bd33. 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/FR2X42090980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x336abc55e32f64ed24db2af62c11004ced4ae29a59af82a2f07bb85deebd08b6. 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/FR96X1926709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d69d1bdb93fdb7ec3489210602e23d055a44c467d6c5bed1abaec9299bbe033. 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/TCADS1888247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13f6eaa8e4bb00f2082a9327a4d80e10fb22240a2a029406d8030977baef23fb. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/TCADS1887368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x405b39a10fa4046342a6728c6d53f40dc153a4ce54dce3755448056ba38c619b. 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/TCADJ1784760.
Hiye Kaaya Mein (feat. Mooralala Marwada)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c2bd59436e70a82f98e5b4fd07669c8850b86573cead0f7564b934e639a2e67. 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/TCADF1766481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x882c98797b43a9aa20c21352ae896aadd73cf94d6cf06939684a97ded1b499e7. 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/TCACT1630144.