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 0xc040c962c84b1434df7df856c6b341992ea6370696460a5be0b218004850f3af. Chain 2 (Bitcoin): anchored in block 953786 (2026-06-15T12:56:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d8e0d3b8-9073-48cb-bfe3-8397a368d1a3.json and https://artists.proofprofile.net/proofs/artist/d8e0d3b8-9073-48cb-bfe3-8397a368d1a3.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 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.
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 0xf702a281af7f7dcbff48613b4ad923e41345934e9c4c927e9d854ac81e927b10. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/INS2X2401406.
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)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29847242ce0bd85b9e4c51f5abb8c8d2e1b0b200788d983ebbe28b3909550db5. 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/INS172316361.
Rhythmic Glimpses (Indian Classical Tabla Solo)
Tomar Ghawre Bawshot Kawre (From "Shotyi Bole Shotyi Kichhu Nei")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a2335fd7294de8a90d6ac73df5091e5001b3d69562de59b8f9c18ac53c3e9dc. 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/INS2X2403702.
Shotyi Bole Shotyi Kichhu Nei (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a29a200fb4831bebef248ac89bedf6bfa570b1f4b99bc7f14d0c44e24ec4924. 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/INS2X2403701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f8af47f62a2090e8572030cd509ab87efdc1e31ea40a90895d67ced5fbbc7c1. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/INS2X2403704.
Pakhider Smriti (Orchestral version) - LoFi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x358a85d3614e5f7c453692db7a10031a2039899349c09f01268657a73a1f6f48. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/INS2X2400244.
HateyKhori (Original Motion Picture Soundtrack)
Badami Hyenar Kobole (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f72eb2d442d53fbf3f796dab47e09d826928e38a3052d95948a631bf53e0610. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/INS2X2338001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f6552b989e3ef204d94ef13043b84d1367cab7683323f80af02ace16e5f4cdc. 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/INS2X2338002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa37aad267ccd6829c52c528a297471c30b3d9a802895aabd5485b57f750812d3. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/INS2X2338006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7cf8ee973b0a86c8dd9115766bda0a641ef8f56c0f8d908860d1458ba7dbe54. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/INS2X2338004.
Ghor Bhanga Songshar (Original Motion Picture Soundtrack)
Shibpur (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9d065d3ced7193dd8b5915e367a05f4db9823937af41a290193cb2178106e86. 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/INS2X2317004.
Dana Kata Pori (From "Indubala Bhaater Hotel")
Tomader Valo Hok (From "Savings Account")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42fa36a4e98cba4f7c191ce9e3e57690bea8806925ad48875aa5dfec021a033a. 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/FR96X1926349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7071ff3731a548b46d95eb736245039d4383a2735a4bf76b539e763d5e7b7711. 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/USA560772341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb57990ccab45c65ee4a9f78f184c16adf0e0abe9d01a562d6438177290934b25. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USA560772243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf53b1dcb5e3ae053984cf2a48df3bf494359fef1e1882c70b70685e5756cbd5. 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/USA560772609.
Mukh Feraye Na Mon (Male Version) [From "Olpo Holeo Sotti"]
Mukh Feraye Na Mon (Male Version) - From "Olpo Holeo Sotti"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12fba3694bb42f2c42a1451b1d090b6c34e7c469c2d6a5cdf1235672404e9f5b. 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/DGA062372533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0404522186bf1ce578179b71eab328fa8bd9e8033cbef1e3b73be0f1bd4c6632. 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/QMEU32115754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x947eb5963717cbfe95c1034201ef9e80681d05699d1d96e6ba8dd327a62a3c4b. 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/QMEU32115756.
Holiday (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5b0952c0c31008da87a2d5a054d7f516462361c0d546c166b34a8d6fe77b762. 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/INH100510692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaf82466783c5d24da27e76e2f34e5ccc9d476795fe3fe2dc5bbfb6c2037de18. 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/INH100510689.
Mukh Feraye Na Mon (Cover Song) [From "Olpo Holeo Sotti"]