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 0x8ef03cc9aa1e780fd890aab3c6fcb9a608ec937ceba3509e11e1abbb80c89393. 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/15443f18-7bf4-4c01-bff5-fe9f3aaf3604.json and https://artists.proofprofile.net/proofs/artist/15443f18-7bf4-4c01-bff5-fe9f3aaf3604.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Neerveezhchi Thee Muttuthey (From "Kanne Kalai Mane")
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 0x0a9f7cf47a734e3194694c17e43dcc09a410a3164b622a8a5a792ae909d71622. 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/INK120905845.
Ooru Sanam Thoongidichu (From "Mella Thirandhadhu Kadhavu")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe646cf244b300d5afeb16dea6e24fa668970c7c387da7a9c98fccfd325edb8a9. 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/INK120906024.
Unnai Thaney Thanjam (From "Nallavanukku Nallavan")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeadfb6e2632168120192ab3b82e5c4bd69bd36caae8b498b5dbd6c5fec8b2378. 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/INK120904818.
Yenge Jen Jeevane (From "Uyarndha Ullam")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3be15f3bce90785bf725e63636de686d58f43430bc4b37ea26a5403ce19ae68b. 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/INK122200006.
Nila Kayuthu Neram Nalla Neram (From "Sakalakala Vallavan")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45878155de74e4ae6812a2131ba2e4ecca2aeb046066952b3f6309fb6fdf5876. 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/IND292216226.
Aadi Maasa Kaathadikka (From "Paayum Puli")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3063b125118a154248c059a0ac31deb14022207435bf0af7e166cf7674e13b9b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/IND292216227.
Vaa Vaa Vathiyare Vanchukodi (From "Mundhanai Mudichu")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e817162dd22fd518ce1a21b880380ea2229ae784f9c4fdd1704384c652aacc7. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/IND292216228.
Nethu Raathiri Yamma (From "Sakalakala Vallavan")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a020fe806389f4d8e981e384a94c4d2abd6e2e6996676335fad452bdd698d50. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/IND292216229.
Kaiya Pudikanum Sami Kanna (From "Mundhanai Mudichu")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x105e369490cd5a73e7108df8fbc302e188b556316861182d690efddb234833cb. 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/IND292216230.
Vilakkuvecha Nerathile Mama (From "Mundhanai Mudichu")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x008b42545b32433993c7807ef13712a476195fcd3b16233d78980c1c75f981c7. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/IND292216234.
Mama Mama Yenna Meduva (From "Nalla Thambi")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf30c093bade35a56815e2c09b76c4660e1c079c729ac3f5cd593a962b768e51. 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/IND292216235.
Vidiya Vidiya Muzhipen (From "Nalla Thambi")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23bc8d068e2d8cb31efb81f2b83ffb4ef8c5656d06967be89f1b8467566583ae. 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/IND292216237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c4f15423c352530a56e84c4c43d3ae02b78815577f9430070bdf33966f8c437. 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/IND292216240.
Mundhanai Mudichu (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34a8700cb9d2e114b2b32a5f537a2685931f856425781cbc366ef8a2d4c70e17. 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/INK120905995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a6fb50cc5bcbc5578b7a3f9f7a560a5b508334345aaf59431f813ef35cb7952. 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/INK120905996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f17e186586ce7784c5f659675eca87a1f8cc3d21323204f00aebac3c22478d5. 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/INK120905997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x023a5583f53becebb28f622a1567487c47bd9c5db1e0992f44c18f9e82de5810. 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/INK120905998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x275583e15ca0f5cf6874aa9cb66d34a7f6d9f1ba77bea59b6872e2ca844e0599. 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/INK120905999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ff82b3f5eaa91aa2aa389cb8f5a1858ba8eb74eacb64ff43e3ead6d49d4f6fc. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/INK120906000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b6a135abccdab569a8246de758c146e93b518eada1131009e294d7a677824ee. 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/INK120906001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd1a5c719c1d276a650d72a2eabfd415bf7a0d38b935cf1c21d2b1735def3ee2. 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/INK120906002.