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 0x723132cc59e189d89875b57e8aeac78d84af6a8fa90cb19f4e6e5de6a86085e1. 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/4df286a5-a3aa-43c6-9d9b-f30af3b3bbb7.json and https://artists.proofprofile.net/proofs/artist/4df286a5-a3aa-43c6-9d9b-f30af3b3bbb7.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 0x8cb539d5e77891b3ae627f34996549faf9ec20dc150f638dfaa1e1e3e394583f. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/INL231506976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ec856912adb5e53bb6850ee8d74e5434f8dd879289c8ba5729e8e7d031d4664. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/INL231506977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x101716bcb1d421e05c8e0dcf6e543d25591123f80709f50160e873e91dec65f9. 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/INL231506978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x278abb9b93349ef3952fadcb9acfb507216c2d326b0504bdc7f6f91bfbc5380c. 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/INL231506980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0e257cb430559ac668e2aa6c40dd363031b3d5d6315a2ae2be19b57674a1b75. 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/INL231506981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f909646deadd83eec52e89d7970d600b52f7abf8cfb6044ed90ae3c968f40a7. 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/INL231506982.
Paro Jhalak Dikhla Ja Tu Dil Mein Samaja
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad6eb92af9611245d54427adeda8f38cb02f1cadfd16dbf004c06df05d92c288. 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/INSD71019009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfcef4d66e98ca84f1cdce6c83a83bf945772071eace8f01391bcb50a58bfac7. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/ING212480073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b153bcb564218b225a5b1bda2d005235dc6786c0663d335960455f7596f847d. 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/INK942400339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ec0c4fdd3eb14d84882a95e5118d2751e048fd7b868980f4029e28317be4c3d. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/INL232303092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29b3b1216861e1e6c74770d87eaaf080277a039cc830ed16d4a168736ca80ac1. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/INK942300698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x686d72b360a1fce19b57c86dfe5a81bf0a834c5119bf9da2b72e0d3755f15dfc. 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/INS7A2422796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6fca00f0ac63d9c93a5df97eea08cb7bf1d8cfc8bbc6a9746ef6a431293f91e. 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/INE182301607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f00469f727a0ed820d7c863ae7b211f483b28688da49825fe06edaf241bc484. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/INS7A2288990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf26b48c97b073f1f252453238ed8cb17fddedaa36a8fbb3e0de0abeddca7aae6. 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/INS7A2256357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad145b68d9dba818ee573065e2199934df5e2c7661bf3d374f4d8a572aa46422. 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/ING642203443.
Patna Ke Ghat Par Dehab Araghiya (Bhojpuri)
Kahawa Ke Kerawa Kahan Ke Parabaitin (Bhojpuri)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8264957d73c269aec1d608cd6f3d82fe8534058c1012df4207b671dcb0fea03. 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/ING642203249.
Kya Goda Ho Gaya Late Aaj Baba Na Aaye (Haryanvi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d122827c7cabe3168d1067a3f1e70918d0f8fd35283af154a76d5950e8fb96e. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/AUC6R2120279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf58fd476df408170ba64bf14f9b54107dd1f637d40c2f0be9cdea5db499154b7. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/AUC6R2107389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x755497433a89eef5a290a4afdaa5009d7e8de4735ef5a7f0ac999ccef24e2f25. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/INH412113378.