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 0x786e0d62362f5a7d1cf5c66e4fc773e1d979504ae7cb252fd66a709f105a81c3. 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/fbd68bc4-223b-484a-a9e7-85536469a874.json and https://artists.proofprofile.net/proofs/artist/fbd68bc4-223b-484a-a9e7-85536469a874.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 0x145306d71d0a8c2a717fa41324f8687eb44f78c72a2cfb2c140097989e8f8ac7. 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/QZTB72327954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fcd5af418db195064f3f1f08b3ccdadda731c2c4702c8f894e26c1200d3ced2. 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/QZTB72326005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x221f48c9939ae219c224989896da15c2b974d242fac3b4957a0a5067b1e89f96. 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/QZTAZ2271311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x190e1004f152b06768e5b9b622e300300904a7177a53b0ac22eea77bbdcdfa44. 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/QZTAZ2274140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb316760a94d3bb579df5fa00f03f27067c96cd759afc13b025550282e9aeb6c. 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/QZTAZ2276360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70c30187ec002c1a02cbe548349d352a125527013ea8689c652e26bd1e588f1b. 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/QZMEP2210522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7597c4a6a0bbb35f46f5e6cd5e642f5136923a6ba40fd9b084505d44539722e6. 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/QZHNA2294514.
Foolish Love (Kukpe Tsedung) [Radio Edit]
Foolish Love (Kukpe Tsedung) - Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea73c3c4a56b6c778f7f9cc7157466e4f61faf84ed57db4861c9f11d1e293c67. 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/QZHNA2298925.
Khangri Dagbo གངས་རིའི་བདག་པོ་།
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ba6cfce86b319cc28ba8253d8c766f511ed55ba1c220cff141bbf04f62f9e0b. 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/QZHN32222255.
Rigzin Wangmo (རིག་འཛིན་དབང་མོ།)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28c8e4bc3fa9f07108e6ccbefa1fdb292d8c542e1a1d6af401b0cc0d3aeebe2b. 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/QZES92202737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x443bfba2347f8f1c06430b58ba7f310335d05a001884c14494cbcec1b28c2a74. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/QZES72283080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6567e162949374ff58e19c7783c736fd4ff225f8f1fa452e0a4c071a9c9dc659. 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/QZES72284820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b7da45172744021b2f3ef490aecb327d7c4846779c5398994e7061abb613501. 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/QZES62251635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc45e048a71af5598baa6b1f9098e14288504964c43069bd644d48f3a4c7f2b01. 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/QZES62251638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75b4c30a416abaf1f44c6b1bf5d495af2eeb1a7516d3a36987ef908c6d6c7a6e. 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/QZES92205556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9587beca45dbabc354eeac005fd5a971d36efd8939cb5b79033de787d05541f6. 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/QZES72279348.