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 0x3b43ce694f38ef52ffb2184faf2075c53653ec85662a3082c4535e3140f24369. Chain 2 (Bitcoin): anchored in block 953621 (2026-06-14T09:42:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1eba2af4-5acf-4267-ab54-ef04d9bfd085.json and https://artists.proofprofile.net/proofs/artist/1eba2af4-5acf-4267-ab54-ef04d9bfd085.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Sambuddha - Evoking Buddha's Spirit Through Global Music
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 0xbf933a3c31851f6de393344a9b15ecceff9e86f0716276e4d675d3d13c86046f. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/USJ3V1872038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2962bf61bde7ce425f87ca3e9c6f88d19d0917934c8b783b6f654f9c5b07fad9. Chain 2 (Bitcoin): anchored in block 957613 (2026-07-11T21:37:58Z), 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/USJ3V1872039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x460e3ca92886e0ad078cb6c3008ce5da80d0544c265a64d1702d5c7a628b930b. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USJ3V1872040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf0e9d8625f4c67185acac7f2bd3149da3c231376c7b117da117f7216d4d57fa. Chain 2 (Bitcoin): anchored in block 957603 (2026-07-11T20:26:17Z), 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/USJ3V1872041.
The Bliss of Nirvana (Jaymangal Atthagatha)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x535807594bd1636adc5e88dbf93d94807f1afe67f28e77828d5ee41e7295035b. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/USJ3V2047813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6d6228cbceeae67db01ab2e73588647f933254777159791b0fa405caa7dcca9. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:40:52Z), 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/USJ3V2066558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x327e488f344f0fa97ed3184eeb520b83e54f1ddfc0d79cad63b8679d134d49da. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZK6N2188641.
Pawa (Official Song of the betPawa Premier League)
Genesis of Awakening (Jivan woh nahi hai)
The Divine Compilation (Handpan Version)
Symphony of Compassion (संपुर्ण बुद्ध वंदना)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64007a30a625dfeccd63c76e2f43d18255ec6a7aa718d875340bdec48a8edff0. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZES82583289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dc919c80eb0fe814a3cfbfe14675c166ae233a767a12684a3db2348a00237f9. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QZWFL2517803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1e0f660e14f8f85b51c21e157abd9e6abb1d134b8eaf751d5ff6b0afe18f7ec. 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/QZWFL2356145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90c523868f510c037285ec4c19a5bbe8c0be1f65129221d1b5315da8f500cd48. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QZWFL2356148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d028a786f800b60e9ac2d83c052396c5dbbc98e45305af0718ea5cad43c91d1. 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/QZK6H2240663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4707ae4a1eda63e040452371889dcaedd715b3a96423991c3ac5d875fc2acf9. 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/QZWFL2356146.
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