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 0x1976b6779893ed6225796ba64225de184506a69d036f94d46c887ac2d18a44a3. 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/8eec06e3-eecd-4973-ac44-2a0705cf12ec.json and https://artists.proofprofile.net/proofs/artist/8eec06e3-eecd-4973-ac44-2a0705cf12ec.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 0xcee5e8fe5da02bfe41d2a46275ff11af234432b750ad691cfb96aec2dba440bf. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/FRX872049946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x627a575937fd449b936f82bda1c508867d050563f641a792577ec09d1267f98a. 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/INN241701595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd576cd1ff17e2d92ab19e272d420f6a720ccd992f512cbb2c9cf830022d0db9. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/INN241701596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a693aa582446f09832167a18719b8ac0c562d169808606870d6583a6b99f796. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/INN241701597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa484b160af40464019c9843213f28c9943c0fd5046878cc96424c3856a25e33f. 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/INN241701598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3daaf580616267b2e694cf76b83da39988131b9f896f7aee3883271b89fd86c6. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/INN241701599.
Nimbeshwar Mata Arji Suno - Sampoorna Katha
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x553f5438b8c37e6860b440339560018ca38f5c0c5093dcdeb6aa1afc692dbe46. 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/DGA0L2473563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0337042cfef52b112c046aee6b3f978d1c3fd6c5854d8f01780ceea5ffe7f68a. 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/DGA0L2425595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6346de7b8ae79e0b120b4e039ae687ba3f072a4d73d3f69eada6c28e83e8238c. 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/INS6Q2000564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x113eb199cd040fd6dc0de5b59021e97c387a4499a42213e8d61322cc3ae5265c. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/DGA0H2482075.
Aaiji Tharo Bilado Badbhagi Prithvi Lok Me Sa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fa9b581d281292ce0b730db49793ba9378b55592a8cf319450b3742081e1709. 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/FRX202156801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd759997653353aa79b6acf86e18990123d44009dd930a942f07ac81f72136097. 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/FRS182112183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3b06c3ffdf345ddb0a7270f4cf23b5a93a8e739edb9e3d9a75e0bd358717b66. 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/DGA092465475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbc20fd0439bbb433851adbb881e3f205fe6b5b8e654d7e078a6c255f484c941. 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/DGA082457227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x641aa9514f38ea839d62ee60adabf3d37f08933920244e132b1764f4fadf635d. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/INS6Q2000544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf30f421c146c0e6b7b6e20d4ea66135676af64d1cadb5d1d181264657ff793d6. 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/INS6Q2006135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7744ec9647fce9537ab476a8fb2f5ed4252ef81b9a8eb5232114df1638432c11. 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/DGA062468963.
Meh Nachu Bannasa Nachu Nahi Nachta Ney Tokano
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x444ded9d03d77d76014c372231df4a8299f6603f2966386837d11912c339157c. 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/INS6Q2005788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7820dae8bb7579e65858f03d427d00efd972e86c5689633e47afc97e2fc48ce. 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/INS6Q2005701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fa958bbcf7b19624fb0b3e41cdcd2becfa1beeb743a8079d043fab953f2b2b3. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T16:43:41Z), 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/FRX872464458.
Bhale Nacho Gori Dj Me Maryadit Gana Bajan Do