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 0x5aed55554852496ce3c267b34645346aa4ebc1e9e08b1914390d0da5f962131a. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fa688fd7-e622-4d66-8e02-538b703a03ea.json and https://artists.proofprofile.net/proofs/artist/fa688fd7-e622-4d66-8e02-538b703a03ea.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 0x57e76c12d67e38191cbdbbb702f6c6c8acc4eeb4bf0f80d4442e5c4edaa1f466. 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/QZNWT2571829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8143a39d8e65689b791d93cbd4ed5a816513d2b0fea6a56ed399a016cbd2a41e. 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/QZNWT2571840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce2e937d2d231d8327f55caf785eeae6c612071f0bc4fcb632cc3553afe7cfab. 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/QZNWT2571830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6f4c6271b2e2c120f252249b2fb65ba160033f88c3475b75b8b9e847132ecc2. Chain 2 (Bitcoin): anchored in block 957661 (2026-07-12T05:37:10Z), 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/GBSMU8342457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31ab14ba2f2709c5c5cb9f4f79814484b3f01022a68bfdf7464aa13c1768bf73. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T05:55:09Z), 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/QZNWT2573937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41a13d43fee14a5956612c54a6ba8fe03edc3a0ea0436ffb6957040f63193282. 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/QZNWT2573916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cd3afeb6e71a8016b6598b8450a43acd4326f2e6e2b6ffe34a5c2238ef7e07a. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZNWT2573934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87bdb060c69ce1ca00f6acb725acec1b73b0b676705e3df017b17e9295a22845. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), 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/QZNWT2573942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfad2328bf325fea6a5a299c7ece37968299f90a657d3f0fbb0294e1dc719afc9. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T20:44:14Z), 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/QZNWU2511133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x448f780f1d9b5c93ba56019b4a35b26fd25950f2c944a626b945a84078810b0a. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZNWU2511140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb01c1e3ffceb2de93284ae91e7e0e0fb76d7f8cbb017c078e6126f3810e5e8df. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZNWU2511142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5a090d1b57a44dce50ec3cbe6df6b9be89a5c71ae63879bd13cf2126770473e. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/GX38U2529793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b3af0fe1f4a3fc1923b4d6f967349e8c7c521349e51c242e2ff67872d52f87d. 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/GX5MX2547300.
Ubur Ubur Ikan Patil Yang Penting Nyetil (Original)
Ubur Ubur Ikan Patil Yang Penting Nyetil - Original
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37c2d1e15710aec3b81a1f00559a2b36942c3df85f0d052aaee59a974a3363eb. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/QZZ7L2503619.
Ubur Ubur Ikan Patil Yang Penting Nyetil (Alternate)
Ubur Ubur Ikan Patil Yang Penting Nyetil - Alternate
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42013c178af8867fedff760ec9e1b5d1643f6dbb6bb662c5777c09ee55ba3511. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/QZZ7L2504930.