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 0xb56a56853144278d61fa6b1d6e28050ec1f5462e571518a35f265d20c09421d9. 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/d7c3773e-bc34-4c77-9527-fb67ee71f306.json and https://artists.proofprofile.net/proofs/artist/d7c3773e-bc34-4c77-9527-fb67ee71f306.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Aara Aurangzeb Da Shaheedi Bhai Mati Das Ji
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 0xa32b58c21a4420e4b060f887725ca2a7c9192f5d7b44fba2ed5dfb20036ae56b. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/INB942200267.
Sher Lalkaare Marda (Battle of Chamkaur Sahib)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5722f784f3d766bd9802fc126d7bb7a1a650cc50ef4068c068dc7f9dc9de34ec. Chain 2 (Bitcoin): anchored in block 957527 (2026-07-11T06:08:55Z), 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/QZK6Q2409008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4159ccf3620c8fa0c60af739109070ba650109871a1913c30493e57b15e1539. Chain 2 (Bitcoin): anchored in block 958654 (2026-07-19T03:55:30Z), 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/TCAIH2454139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb13c98918b6ed8538083371f278cb3901e73ca4d0b5e34be913b99fc7590fec0. Chain 2 (Bitcoin): anchored in block 957526 (2026-07-11T06:03:28Z), 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/QZNWR2427781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73f01bf9a9be5303892f8cd35edf4fcc8a50b19ac4719b596a4b7e0b5cb5c6f2. 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/TCAII2482570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x016729ab20b6c4749529b429bca1c152a16472539f0d232e9a190cca37bbf41c. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DGA0H2486157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x170d873ad8d55ca71a9f19575cfc44deeb4020210d1cadcc0e0b490546f8c5f7. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/TCAJC2441182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d78dd2d2dbf7c3190f5d80a419ac86254942978f57e1cfecadc23f9b3538c84. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/DGA0T2427965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c36bed8f7f25fb83cab4a6ff6e9ae7a98bceaa7096d4b3bd319b0723d46cee8. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/TCAJD2429383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc66194b672eff05639b4d8edb457a0b26d0226248da8661063af674b94ad023. 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/TCAJF2543622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88dcd1223d4218e837bf90135422b9ef006d327b33b65d66928bfb9649ab350f. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/INB942515110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c05a5c57573c18717d6290a32053406cbfc8364b6e95e23e70d484c692cd19b. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/FR59R2551014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5294bd3afab550ed92fa7eb0ff78a93a6a1ac7966115d243d944c4680f8373a. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/FRX282540601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x130f79fd8ecd173dbb6f871c0b8a8f3250175ad80276036705e539079d5588c4. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/GX53U2627915.