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 0x43a56631af114993b2ec01bd66b1335e5ea82ed9954bb71a33ae427ec0b45848. Chain 2 (Bitcoin): anchored in block 953896 (2026-06-16T06:05:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/10e57b23-2869-48bd-bad6-160e437eb5da.json and https://artists.proofprofile.net/proofs/artist/10e57b23-2869-48bd-bad6-160e437eb5da.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Mahaan Gurmat Samagam Newcastle Part 1 2025 (V22)
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 0xd8cb687c57c7c228c691416de22df7fefaebc3d878cd62fd8cf280d7e21f1fd1. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/GBMJG2529354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x367cad926e2bf3f2a112876fa989719627a2ae2e63c61df8485976b479813828. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/GBMJG2529357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97851628fae5b639870f47a1c943cda72a893eb122fe6285d64ace2dfd84914f. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/GBMJG2529358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b57774514e72dbba098cf0a36486b8c7efa272df7979def349a05d7f42d98c2. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/GBMJG2529359.
Gurbani On Guru Saaj (Jai Taal 13 Beats [V26])
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68c50ea57d03648cb62aeeb2ca5f1db808e0e12495630daf14fda33a59f6092a. 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/GBMJG2500054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b29c99a5a7d2cd4c321126b749266b83ec6a0f6ba30b87dc7a6d16d0a014f07. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/GBMJG2500055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf776ab58872af428f8cf96909b3560c3e36a3ba804a2973f2522b29524589fb2. 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/GBMJG2500056.
Ulahno Mai Kahu Na Deo (Raag Nat Narayan)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77a2bf3e385d52551c216017e2659e5829fe503ce580e69e4a5c7148b093df97. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/GBMJG2500057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44513af1ff1054d8ef9ffecfe68b104c737100c0fab5173fd42a1eb6ca9f9aee. 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/GBMJG2500058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa949277763ced4b2b3d662f4ea5b82af04ffcb346d61678039eb699b6ee2443c. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/GBMJG2500059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x703d6445ea59f7558f6f7873f9877dba786353b0cddf067510afc54eee1afde8. 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/GBMJG2500060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9aae213d60c2d656305a0eddd6211bfc8de91d3f6a3fff57206e3549ef0a21d. 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/GBMJG2500061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x407128c369eff9e99d14f75fd8f54f1024206e96ab2dc345b7e510c8aac7a0a9. 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/GBMJG2500062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec1a2cc6c8eaf3e593bb33594b336ad79f903aa423832d1ceb9fa896b5900ed8. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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/GBMJG2506852.
Har Mandar Eho Sareer Hai (Prabhati Bibhas)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefb05e2fa8c3f58c3fb3728f5e989c870b0dc430d36c4774657a50c97b1fe1e8. 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/GBMJG2506853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2faf3df1bfa8e344d97065488c5134bda9d3e3ab6d933ead98a39f4be76d26e. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/GBMJG2506854.
Namaskaryan Mor Tiran Tufangan (Hansdhwani)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc90370c84a89187c0799e162e07b9050772f5157cf6f41e6689e43f8447a8c94. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/GBMJG2506855.
Jhagardang Nagardang Bagardang Baje (Bhatiyar)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x661214798399bcdbc15ba9926c36a426c723a2963bdc76c272a045f9be49baf2. 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/GBMJG2506856.