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 0xcf7b3d46d70dd692bf8668258ff5fb580aa5d6f0e6419e58550faf4c64f6b320. 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/9baf354b-14ed-4450-ac5e-1dd03f732a26.json and https://artists.proofprofile.net/proofs/artist/9baf354b-14ed-4450-ac5e-1dd03f732a26.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Pattua Pattan Nu - Virasat Sandhu And Sudesh Kumari
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 0x46de73851bf859549430884e1077d639e349d027d20d9bafab0ffb937e24b9e8. 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/INN241808194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8d0b0315173408e36894e563ce3d3fe2e79bd887fe3589f1728164515f47e6d. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/INS181802984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36fee752a2cf259b5a69101a9b39e56a24e4202bd821ab19b80ae6f293c8cc99. 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/INS181802477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35ddf0e06b8cf7dc4e2850b021037b2158328450f05260177110e424420ddaef. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/QMEZE2087847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4704ae51020bbbc447492ed3dd94330bba1bbad191fd09490b92d5cccdedcd6. 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/FR10S2287258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x600f848b2e18d5f8c316cf1e7fb89daceff096e2bed559e87827ad02a7bb7d4e. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:28:50Z), 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/FR59R2147357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e11a60250073182e063464684af5f9c7beaeed0f5cf8ef009115d82403900e9. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/TCAFQ2185685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48dc59941882295c12d391cd0a031f445b52fc6285aa8319fbf23b98a7b8d78c. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/TCAFR2146527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa933e9bee78b4c35287a3956c66c28ac5e49024162b917159e7fe228fd681b79. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/TCAFY2140739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55eb68a92fe9a710577333a6e352626e551ad166fcc57059fd57f4585d960eb2. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/TCAFY2180065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c0e9f7a2242b24ee05ead0274c43c3afedfacf8099a8c55f95a39efa5127fad. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/TCAGC2299436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d47d15cc15b5ea3f397bb35a5edb2c7983e03d3e3f8345c22e6d8d8868f5922. 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/DGA072362349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77a48861b8e3acee9e00fc0abe118a926abc71245f0f1f5e0aa843c4a21b0fff. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/INS182303158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55e20a799f61502f1b3051aa3709b77d5e56702f09d2dc7bcb4db92e7639016f. 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/INS182402946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfe0b366633c46986fb2f1f9ff9d41d4632df59eb8b14a12f533f89c711b3577. 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/TCAFZ2283127.
Punjabi Music Junction Vaisakhi Special, Vol. 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11b68e0210d5503be35d580f2f9fe8f209d8e9c0f03e93c16650f2851330a1a4. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/FR2X41827527.
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