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 0xbe8852b196817cd9644c60f509fa128b66d2969fc2d8bcfdbba7e9111a267d08. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e3abce61-2039-4681-ad92-d8620e84ac4c.json and https://artists.proofprofile.net/proofs/artist/e3abce61-2039-4681-ad92-d8620e84ac4c.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 0xbd514837736ae7d871add19b52eb70e5948bdf58f445e683f324c6d96a24eb61. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/INS181424259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a38c4114197c0e4fb84b45ef63dfff8aa951a6a99cf09d85ace12dc5c281ee7. 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/INS181424262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3db7e217f4a65fde00f15ad56044b8582b78d48bbc6e3f2b8c3903ae64ed02f4. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/INS181424263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3715fa83e1fda682c2ef1c399e82a525df23050bc1bb669316c4caa0b77692f1. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/INS181424264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01da4186b1ed0a9df73d9c8ad96a132fa3689aa3531a353d63244f55c89f9c65. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/INM120000666.
Futlago Khuriya Karil Gaja Manja (Kurukh)
Hajma Ruth Gailba Mangat Neg Badhayi Me Na (Bhojpuri)
Hoichhain Gauri Ke Biyah Sakhiya (Maithili)
He Sharde Maiya Vina Aaha Bajabiyo (Maithili)
Gangubai Kathiawadi (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4c02769dd2996a51b4f93802816457ed1127006aa65880210ba3d9142ffc160. 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/INH102201581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5187006cfc2d652b2ddfe3b312e1d8c55f927bf7fdc786c991fdc0d336076af1. 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/INH102201585.
Dholida (From "Gangubai Kathiawadi") - Single
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4c02769dd2996a51b4f93802816457ed1127006aa65880210ba3d9142ffc160. 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/INH102201581.
Amma Varnam - Raga Gambhira Nattai - Tala Adi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e319db6484af5390c662e25a84aea57b7182beb9eb971abdb1480896196d33c. 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/USA370697936.
Anandamruthavarshini - Raga Amruthavarshini - Tala Adi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c74da53150336848598581da3627882079b5590eaa4382355061616ad2b03ce. 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/USA370697938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93c6ca83c1bfb86fbd84f9f2393b78c3bc40214292d9cb2274667838d2e447d4. 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/USA370697939.
Krishna Nee Begane - Raga Yamuna Kalyani - Tala Misra Chapu
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x374cda7ecf074ef3f4428fce10055f1ceba964683e82f8d6c73a9fcb77459d5e. 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/USA370697940.
Aasege Savira Roopa (From "Ninagoskara")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf28fa91f13d545f82d300aa32d5b9c50c4d0260d78460f7c641960a057976a5d. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/INM401102009.
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
Mokshamu Galada - Raga Saramathi - Tala Adi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca5858c49d608e3b9ee7d5c04ca6b7221a082b55db9cbb49f7dae598410b8c52. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/USA370697937.