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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e7c1fe3bb5bf076e8b772546f06bd7de7e184fb377e7f3f8f00fa5ce2a554de. 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/0538e0ed-7b51-484e-9ce9-b4d3745c70f2.json and https://artists.proofprofile.net/proofs/artist/0538e0ed-7b51-484e-9ce9-b4d3745c70f2.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96f8cd324b3fefd52cafd6b87c6ad5f9fd8c1d67948e2566bee28aec64aad5d7. 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/INS182303317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24076627d7fc7c2e1fdeef7e4c256dad2d8c66bcfd5afaeac69bceda530db934. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/INS182303312.
Manasa Nuvvu Chupe Dhari (From "Cicada")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ddf450c13d5f49db76a5cdf3a3a0999585a755ecb63dc90e1592eb6f664bc25. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/INS182303259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3136e6d821b8345bd7d663c9aa4a0987b4ba0f55963af6dfe56166891b186fe5. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/INS182302666.
Thoongum Podhu-Edm Revisited (From "Cicada")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf236786d5eaed8e91ff33b6c68d033562b5524005307f006ecc00c4cacaa8fc6. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/INS182302904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71e5dc4af7d73a41ed7b5c03e37612cb307dfef44379a90acb9d6d8131e0d72a. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/INS182302665.
Thoongum Podhu Un Ngyabagam (From "Cicada")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2624e0858922fbd0e8cab8c169f64d5364ceb4705c9acf3bad49843431cd115. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/INS182302664.
Maanam Thotte (From "Vellarikkapattanam")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c077b0ff97c60c6ecbe30fba2e833af7dc048106ebfa077e22ca1d69b153fb0. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/INS182302221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ddf450c13d5f49db76a5cdf3a3a0999585a755ecb63dc90e1592eb6f664bc25. 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/INS182303259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaebf06a858175bb5cd02d9591309a2c93679cfae388b688f177c33dbfbcad1a. 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/INT522203961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18479e7bbc30c52eb7e2d57624b86b70cee7a0e5d88ec9c5e04eb8ff90c93ed1. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/INS182303308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c077b0ff97c60c6ecbe30fba2e833af7dc048106ebfa077e22ca1d69b153fb0. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/INS182302221.
Odum Kuthira Chadum Kuthira Vellam Kandal (From "Vellarikka Pattanam")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8801bc70fcd3001107ed04ac941ba7e6d29af4f77d98136eb8420478b803aa81. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/IND292200123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa59a6e131701e49a4543ab00a2bf026b7645a74c7de8012288820aa8a4e0097b. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/INM811458778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb86e17023e5a8eafd0835db1aad60ffee5e5fff3cc654dc0c32aea9f921ec77. 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/INM811458769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x185b172101c61522b683b53c274c3430b69f2931d7e49942b78179e1cdd78159. 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/INM811458771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae0d33cd2f9025f3583b88bf0fe19477add5789efbec8291da02ab1d6ae78c59. 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/INM811458772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ee21db2fdc0839ece29178aa7b809716b4e6d91ca6aac72f825727cda9229fb. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/INM811458773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ac7fa281e2206450c49679f198a8fac399859e3607af55eb69367570afceb40. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/INM811458562.