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 0x897d2caf54d62b1035d3746ed3c27190f2b72ed7f5833cd7f5255942a7d57981. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/179318d3-9b91-4096-9c32-c3ec5dc7977c.json and https://artists.proofprofile.net/proofs/artist/179318d3-9b91-4096-9c32-c3ec5dc7977c.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 0xa1380355b0f95690456730a5f9e0e083d32ad0305b1d7c91ef381c32ee9a0159. 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/INS182203702.
Humnava Mere-Dillagi (From "Indie Hain Hum 3 With Sachet & Parampara")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eb09f12f6bd664fc68ee94a225a4a4a0be8a0413d75fb0536859b8891889cb3. 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/INS182200670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f2506f3c6746de262e3c820f03695711266798f7fd68836a7a3f1dc0c2fbbc7. 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/INS182303329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5587da4fa6afd30040633085b84ef324f6b2f700f8d7f1749d82ce4903ce68d4. 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/INS182302513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c35d63b4811de04147e813bf0a4412cb90467d55b7387da3b312f53390961d9. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/INS182200589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe980fa4ed2ca379a463fd86ec537efeca63b88d5c4b212bd7a1f9c3f14153570. 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/INS182200590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38ba2d4feccc4bac0c2f79e221b6ac91031288d3a22a5fb2d5a3724830b2f025. 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/INS181905207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfa001848dc9f00731cb99b2d500730bcd3dc63bd6271f0b63e346a81d53c8a9. 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/INS182001315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f8d5d338ce568f88e31af1ffe30b00250ede3fbddcb620aff9504c5ab2557a3. 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/INS182401079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbfcc77d966e88dc6d0c02e3493e0a02d292e0fca832e5ba0eaa30512db6859c. 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/INS182007042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc36b6def198afa48dd7290b53d9e3b9a24474291ff2ea64701a09f8485debf7a. 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/INS182302631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34624e505f16a7df6cd06e6644f523deebde95ad98c3ee5dbc6e0a2cb6cfa138. 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/INS182301552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e1f0f161c53d338b166dc8ea30ad85df884bd0fa54383b1a367c4a3b09ddf7d. 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/INS182303776.
Haste Haste (From "Phir Aayi Hasseen Dillruba")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfdc48ac1c91e4923bf263ed621d7244863f0cf1c468667e0e88446f643961cb. 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/INS182402283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfdc48ac1c91e4923bf263ed621d7244863f0cf1c468667e0e88446f643961cb. 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/INS182402283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e221b58abe10811339e22b98ed6b01fd116bbef7e35714e2f5813627b87259e. 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/INS182402303.
Nayan-Nai Jaana (From "Indie Hain Hum 3 With Sachet & Parampara")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3999f8d62d25da63da402c4729569c146f63a9732d6c8b7f8e7153e39c8a9a57. Chain 2 (Bitcoin): anchored in block 960145 (2026-07-29T21:13:37Z), 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/INS182200805.
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 0x1f83557a1827baa1389f61511a22e35f68a58f2ce43bd3d2678700c2eba213b0. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/INS182203208.