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 0x3ee246c2d71eb9fbe466435116e8407c3107e78060540c9342eb08fbee804974. 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/96f3a387-d893-42a4-a604-fde659ebbac6.json and https://artists.proofprofile.net/proofs/artist/96f3a387-d893-42a4-a604-fde659ebbac6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Saaton Janam (Sun Meri Shehzadi) [Cover Song]
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 0x3c78e694474004d5925ce1176b3fc768ebd010d229568c317adca2cdc8f5087a. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZDA62139299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03c67734a3c0e6f0a697c9d5eb77fb23a281cc2d90cbd1cf459f5f1260ba8baf. 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/IND832213110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49ee4b03709c363a112dbed0227d98a0756b0e0599c257495126ef22b65e4881. 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/IND832213365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3a3d43de344be4dafa369dd02390181f6ad93eb07520cff7fe94996ea96abfb. 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/IND832301867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabc11f7660b350aa5e947b260d1405a0f4ba3ab52a5d547dd0a1f4fda0226e53. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/IND832302204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf94149816d4116f7cb27d817997fcaaa0a3953886b2b4c5f1aa2b9fd4b602309. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/IND832303056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3008c6b5957e767163904dbb30f070fa9219114b27acf23c80f434b16e9bc8c0. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T16:17:58Z), 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/IND832303519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aea7fc117837e3bb59dba3a67815c1068b051b2a574a4738f56718ac1626572. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/IND832304846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43b8109800c59dda7c3142631a36be87931fd9d4cd73b8890741568f3fa926f8. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T15:22:45Z), 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/USCGH2435178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f939e4eac191ecf51750bbdc10fc9c16639a77b4701f0e79611c3c98d8a9670. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T16:15:11Z), 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/IND832401518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xded9c849d54ebb8d7009c978a2bc6f7871b51a7b50f744d194fc03f2823f4fe8. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/IND832402291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b174e1d838156a22a2234fee08f9f8ca262d043630852f923a5484a39a2272b. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/USHM92408804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8df4439560fce8353f26b56a44329ed68607175ab3254b6b0e751ac24e56e9c3. 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/USHM92486608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62727de7816abff732cc473ccead165ff2a382dfc609726acdfa68eb918c0434. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/IND832404237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1c31cb76f93202bcd2c130c89937fbf2c0c585baa97efa12fb1e2cd8af5e0f9. 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/IND832404553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf22a35993cdc2d5f435a998ebf0562c92db84adeacfa9c7bfdde57dc24f3b59. 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/USY242442235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa850383b7fd350c38b32cf18885bf398faf033aeb5d9051888eb7b793f23cb5b. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T10:57:35Z), 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/IND832404959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa731bad0d44970fd0f551c7e75b13c3d500213e35964bcf83a106b1e7369c254. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/USCGH2585829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e2ed72d2307415893376b10392c8cf678ee30f6dd079dbc04db2201a0709de6. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/IND832500915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ebc20ef63a69a326001b6536ff958a5fa74efa9768eb046f03aabe44a0b1529. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T07:27:09Z), 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/USHM82532086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89bfc269b49c40956cfc9377f47794403084c5e84fa12f8b05acfc51dcbe49cb. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T11:08:30Z), 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/USHM92500387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe086d4cd9ff9677e68ec103b3b3eef802d3a9c19276c478fa7fca297e5f7b430. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/USL4Q2515194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bd6d71bd46fd173f6a7f311d7eb63f08c8a9fa5e766cebfa4d2aa4025ab523c. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/USL4Q2564087.