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 0xf2b6d3f1e787f5a2ead4bcba8bec99a16f88f27154aa5ca123c4096b0fc7a63d. 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/e9178a8d-1ff5-43f4-9253-d2cb208610ab.json and https://artists.proofprofile.net/proofs/artist/e9178a8d-1ff5-43f4-9253-d2cb208610ab.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 0x121cc3deb144d6f1039c1e97a6714fa27d32ee4820fd34c9bdf082c2194212dd. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZ22B1638318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x121cc3deb144d6f1039c1e97a6714fa27d32ee4820fd34c9bdf082c2194212dd. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QZ22B1638318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5936106c31102caf15204016f925d3955e48f4d782ef323e84cc68e20385271. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/TCADJ1703859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda9ed1f62cfc4290abc5132fc9285505b18ff96b400d05501fdd5855ce5bd4c4. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/TCADJ1703877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1e27569fb364c16a233467e524556abf4ef6538fb1c390784630257e0fed6f0. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/TCADS1842715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd587290b828d54f936c3ab655122457535e6a32cba79f26799f6673a4c7377c6. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/TCADS1842717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d33890a907f74ee770741c3a94f1039cf0b2643027bdace6fe79a0391a7f3d0. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/TCADW1824391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45fb804ca305fcc89c106cbc5aa1845fc39d275f65ee43472a18965a1c0332fc. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/TCADW1824394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x781dc1ddbddec50258a7e26bfc9aff0d70f55683e9048be536f9c17ae6d4c76b. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-02T22:05:07Z), 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/TCADW1824396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaa93fdcecbe6156a075339f4c70d0b09b74b378f7a5807a99bca7f3f9fa00c6. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/TCAED1996447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b98362c6c79a90a6d4ee78debe73823180f1adaa1bbb022fd60bdeaaa987d88. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/TCAGN2216295.
Saraswati Maha Lakshmi Durga Devi Namaha
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a8ee1135ddde76a53d4d6e9a5df4204c9c95669ae912d7c4c30a6c59d7787fb. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/TCAHI2349917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ce34b249f9197c572f9592f9692b896197796faa226a2220e9e086e44bea174. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/TCAIL2476845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58061125784989a1cffd9450850be610f23c050e1103e7e1f1fe75d2b665db16. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/TCAJC2450273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a5048cfacead93f89ad2f660330ed307699fcbb462b63819f2aa38bd0a0258b. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/QZWFN2587094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8af4faca4d0475c5a80901fa3b95582bf47735379038499966d761cad4a0a8f. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZWFN2587097.