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 0x7fae0721e7689265c43614469010915ae465eea3c4420c2098c037d58475b0e6. 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/ece1bd6b-e7f3-4e07-9cf0-983f2deef671.json and https://artists.proofprofile.net/proofs/artist/ece1bd6b-e7f3-4e07-9cf0-983f2deef671.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 0x7be40b77a6528c5a4a2f2d05ab5b190b1090d25d31c9868f8e06291a61b22d31. 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/INS2X2401402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67474071f945dc471e542b31332ab15fa435d07e6acc17121f76a794c7271956. 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/DGA072343472.
Ei Mayabi Chander Raate (From "Baba Baby O") [Reprise]
Ei Mayabi Chander Raate (From "Baba Baby O")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc6c7f375562d6a03cc8d96ea6fde043fb323f0183a53726cd8cbe429c780cfe. 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/INT132103727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc3a129acf12cdce916fb4e060313e7cc9937717a7a097ad80bf9f764dd4e029. 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/INS2X2304010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9c0c261d354b417f9468cd8f760713eb1e5e93f3232ba3ab8c637aa58547718. 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/INS2X2304011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07d7c5be27f21783a9167b538de971d5f3b39d9a5647f322c935619993085372. 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/INS2X2304012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68e3d2a6ec4001a16b43f6af9dd229999767ccf6bd397f4dc0acb611d556caa6. 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/INS2X2304013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc02a9cf652e8f447bfbd209ac7e4dceb5b166803adf69a3b357496171890012b. 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/INS2X2304014.
Kakhana Haribe Dukho Mor + Majhi Baiya Jao Re
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcae34c13d719d87e2930b5cded8b2f85aabcf8d79ce7134ceb9f643a6d08a209. 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/INS2X2304015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1de818826af405f83ca10541a8178f2225c13812aaaa4bb944cc6a153f3c5c64. 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/INS2X2304016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x869018e4e5aefa0a3de4a8942196e6c1b07cd3e02df693b1501173ea8ad048cd. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-21T16:58:11Z), 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/INS2X2304017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc613501d7cb828d63bc12eb3b2a5db169b26e87b19bc72272345ff1ad9c323f. 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/INS2X1900910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a48aeddfcb625391a02ec61d72070be17c8d5fe4c057f67337baa90d3608bf1. 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/INS2X1900916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf953f33ff8f2b8f151b23b738e77d64224e978d7f5bce64783b8ab1089d6a437. 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/INS2X1900927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb444e921774ecc6d0bf3f5be2d3426e99bddbd7e53e3ba31e8cf3798f89ce0a2. 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/INS2X1900931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x959242177cda2162d4ecc431dc5cec63040315cc480ba39ca4b1c3d0ff8dcedc. 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/INS2X2001204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x056ee559120097094b8993d5dc840a298c2002219f853848b431f8656be45d05. 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/INS2X2001205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c415c341a4a10aec823618f6aea28e9be3f097d2f45450fc27519b9588b70bc. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/INS2X2001206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc20dc10c619478bfbe62e957d68a98dd1c8a4529e743a3667f1bf4dbaba1aecf. 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/INS2X2001207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e778d094363101af3578bd678f4eb002144f8289442937e978d3d9930315bb8. 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/INS2X2001217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x039a4575d692d5a98180d63c0ce2f9f90a1421fabae5ca2844520778b2919b1f. 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/INS2X2218001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9d913a47cdd6d74e6ade75c30952f1bd25ce64e66d125f85d04da98ae471b53. 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/INS2X2218002.
Athhoi (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c8b590f35bc2f3e46a3202bd41db6096da282fa9b724a746638ac01a92d343c. 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/INS2X2401403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0c291633e317375a1de4bbc405bbae0581b848366037e081decb3565c13a5a8. 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/INS2X2401405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x473c43adf5cc007ceb8d25921e5a50e5716f335a4b46046e06f75c606b15497f. 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/INS2X2401407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e89e17a83f689dd91883305d21d520c377a73e354ca353900f3d7da45093132. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/INS2X2401401.
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
Angshuman MBA (Original Motion Picture Soundtrack)
Chaichi Notun Kore (From "Angshuman MBA")