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 0x09bd7c1587119f5c8d63cb81641563c76f0ba51385132b4e0d977c7877e8911c. 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/8a6b187e-36d3-4428-a2f1-ccf04c081d57.json and https://artists.proofprofile.net/proofs/artist/8a6b187e-36d3-4428-a2f1-ccf04c081d57.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 0x036b60a297c501f5baa68d63d8c8f8ba7d93c9f6395a63cbdba4f4c3390ba76d. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/INN171710024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb09d71048d1dd0e3437dc7b96c26158d0590ddc47f4945893295a9884e51b114. 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/INN171710036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6077cb4e0f7b092995e0c1a189d61a93c00d139282d258bec84fbb580a968d4. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/FR2X41746595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x214f95c2c42c97263e3571bcc6bf4d2753f33478a318cf2de7dde2097c0613ef. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/INS231804840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd762638d71398643c02fe2704345d3bdecfb70548d143c20a6116ec452e0e7be. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/INT502000988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65510f0e0b1846e76505efae660c875bd2c352bf23c39c4e48c62dc44f7fade6. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/INS182200503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8348c2ae018bdfd655540cbeae6013dfe3d5dd02ceca4a3da020dd78a97d34fd. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/INT502209667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6eef2232ac19e7df9c02fbe8498cde46a672f90cc7a89efeff2f2cc66f6d7de3. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T15:31:18Z), 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/ING582302881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x986b58a3f400e14fd1fbc15ef3b6bc9ebaf8ed420ef7431b6c74c992924aa411. 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/INS232206579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf782ff87a2e0f8fe021b6af9f7abcab99abe4e65073ba6a609ac50216740d87a. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/FRX872287040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5a66b2a1111832df3983c378998525b59e5428e785ddf629bd6dd4ff41f2d89. Chain 2 (Bitcoin): anchored in block 958785 (2026-07-19T21:40:06Z), 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/INA1I2505147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2200eaba65bc073abeab0be0c56cf9325ae1216e4f6256b349837bd67bff8cb7. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/ESA012558283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcd4d1db8c69d06d212514806595af099cd6f63f30c8d9a1d6832f5ab288dd6e. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/INS232501216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x779bbcc191331543f33df8a2b556510e3cce5c5120467bfbe5aac5b2f3593869. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/INE182573223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbea78ae6ca4e01bf7545031a011a8c0c376ace81615ae9f3b748843d5bd7486e. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/GX53U2598655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x530269288d948d6a1ef456eb77917109f4762df5355d4fc12a8e413a86541919. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/INT502520700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d975028fa2ea769c29d43035d345f4f06e80f5598de89f8b4c0e5ce3b17df27. 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/INT502521693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68781c4103942e60e9009b0e4a6d9921358953ab85a0b8ba23d124f8709ee2fb. 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/INS232019566.
Ballu Babli (feat. Manjeet Panchal, Shweta Mahara)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ec1902f3f1d340620e4c496cf9e0d99d99a9ab0069d675b7d47d7f04aea9dce. 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/INT652200105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd1ec16b4929c59a28bc8004558f739d82deb202d58b2ac1829115e7220f9169. 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/INS232010316.