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 0x388d836ab30bf4b8fed4df052af5be97c52634e48a3a7b8053932844c191501b. Chain 2 (Bitcoin): anchored in block 953758 (2026-06-15T07:48:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b3cd78eb-a69e-4a62-bc42-1c9ed8a5b8de.json and https://artists.proofprofile.net/proofs/artist/b3cd78eb-a69e-4a62-bc42-1c9ed8a5b8de.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 0x51cca755eafd2e0f185eb40054a0d8bc5df3c1696c04fa8785aa940e06fde41d. 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/QZAMM2273399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d72b3ecc56e1243dcd694cdb49b2e50786d2b05639ffdf6eb33c810dfce92c8. 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/QZSR42187375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6146584ca63095781134841fd6eb19902fe2a9565454b7b6359a3c4bcbecb2d2. 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/QZSR42141573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7972c8d16994f40d9978721dcbc80959822f1bfc805a905b7958fed3e84deeb. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/GX4R52201319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddb30367f6e15a08511e0e722ef483a530b52e259fef9d43c3513a47995dd817. 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/QZAMM2164732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x129cf61ec75956e0fd72d043edff39e53bac66cc9d66f95ae32132367437eb4f. Chain 2 (Bitcoin): anchored in block 959145 (2026-07-22T15:39:05Z), 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/QZAMM2020965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99d652312698dc79d910fa4d2207cdf0abdbdd2293f518d25a498928b5cf9944. 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/QZAMM2036531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51a7853dfd0bd28c7ffa8ceccb5046b93adb31bc6acff9aba39ee9f83bbca1a6. 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/QZSR42126294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfef8a7188f150f40578ad883e40da2aa17c88911bc38a6afad6cd4423f059d23. 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/QZAMM2017239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03addcb98e8e38d02dafbeb5da21581d9cc9543cc8f1bdb7b728dfe9ef75d1db. 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/QZAMM2034727.
Shivachatrapati Pratishtana (Nekar Nagar Hubli 2019)
Shivachatrapati Pratishtana - Nekar Nagar Hubli 2019
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf08fe3d81a588d31ef569143d85e81d0c596df11f385e6933c00b92451db95e. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/QZSR42131231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60d7b9f0334223307b433a026b1843eadc967230ae2af0b108e448126debcf84. 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/QZSR42126308.
Jingle Beats Circuit Mix (BassBash Music)
Happy Birthday Kallappanna (Kallappa Shirkol Hubli)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00c6daa53cdf2fd5c39b937b1de615c5b60f45d3b46c423e56cec1f622a4168f. 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/QZSR42126310.