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 0xd0090b44a449c0135c5226c28d811cd3e98924b5db4fa0dd150c9b858b10de0b. 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/9b95ba83-0743-49e6-afc4-db4837dd2a53.json and https://artists.proofprofile.net/proofs/artist/9b95ba83-0743-49e6-afc4-db4837dd2a53.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Kawna Ke Jim Me Riyaj Chala Ta (Bhojpuri)
Akego Dhodhi Chatavaiya Hajar Ba (Bhojpuri)
Chabeniya Leke Fad Me Chal Aawa Ghusar Me (Bhojpuri)
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 0x311fb91553c68c012a646ac516da817d55ab660c49321079ee222cccada6af37. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/INSD11914367.
Khake Surutiya Farle Kurutiya (Bhojpuri)
Hamara Se Rusal Bade Chhatawa Par Sutal Bade
Bhauji Mahanga Bhail Payaj Holi Me Baiganawe Kha La Aaja
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e574d5f89e840e086e8b8f24eea44d36766f32c5bcd1bbc4382fea34667469a. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/INS7A2594794.
Hamra Rahte Rangwa Dosar Je Lagai Kareja Fat Jai Nu Re
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec6dbe66f6969fe17811968f5f0b350124d32df408e8e06646f95625b724dadd. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T04:55:29Z), 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/INK942400100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe214432f8498cce600e952b9aa3a8f037033a9d3a6db86f04c317f450661c4e7. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/USA2P2420646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88a70dd356eeb7d9df53c7ae1761e1af9c32754300d2947f9ff4d2c3b4f45fd6. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/INN242406583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe7cab3719c807bb753bd5155b3bb7bd06c227cd5f5d12b1c227383564c8c9d4. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/INB942453823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9665f2f839d842544224a2298aec9abec62096ebc1269067d0b8b47b5c2d8480. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/INN242409098.
Chhath Vrat Mor Dhaniya Se Kaile Badi Na
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25c2426094e5f13f55e6c150c556ecab8a4c5d8b6cddf083addd8a87ea618b34. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USA2P2445077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac0b9a972f2a09c4ed230ffead6132853159dbd1d55a80a845230f8fe515f815. 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/INN242416561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7630915b69ae1f835b46e358f6d9d069574bac434967da5211cf999a717e7739. Chain 2 (Bitcoin): anchored in block 960200 (2026-07-30T02:37:10Z), 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/QZZ432344525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40e0194ab2f3a61511da27a71e79e91ebab33f9ee6e38f0c80e3070e7bc21397. 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/INN242421933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2466141cc6f6e357eaf9427aaf4cb1835f43a2aaa3f095af4057e32b53e3e320. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/INB942436666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30562aaf31c0883fe463c6d7d55f338a550f646d5e664ed085952efd683eac7b. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-19T22:59:45Z), 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/INB942437229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4d13c0e1af16aeff178b86f60f0270d5f2c25ab9f2f5b481d9c672c0c497552. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T20:44:14Z), 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/USA2P2503356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48d7845252e1b9dba7ceaa60ce575cd9013bda3a045bb1c2c92836f7c814e457. 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/INH102500671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x826811f0fb6db813d701fde2f7e079c4c648705c118ce4be08831b1089f5b961. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/INN242513932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf98f04050eff6c719f56a057fbda75afd92e429343b1ff21cdca838f3a5c2eb8. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/FRX282550185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf233700888bb17f301fce6332c0ebc95267145476eb9dceacdd35ce7ca939813. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/INN242529363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fc65691ed3c33ef0701bf400942acb0e05b05ac6710d07dbbef5af9b5d7845d. 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/USA2P2543754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13950f20d5b32144485977a27414a7171f1b47eddd49f32295223a5de14c3630. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), 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/INN242538706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1022e276e3e19e1569048b99dbe392c30076ae496eac88ac4382b457dd34bb3c. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/ING642509363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde445d676fcc17fc6b9388f855803f63938b7379d580ce6d36e1e7b89e9ec393. 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/QZZ432379075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbda7f0a196c6568648d000c337a30935d8cbcdc5ddccd4cef029ebda07e5e854. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/QZZ432379060.