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 0xdaf72f2349435705634ddbd0e8061738704b7d65ef73f1f2bebb0c7d7e4dbb62. 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/3fdcb554-d28f-4949-8e7b-4992cc4d7a0c.json and https://artists.proofprofile.net/proofs/artist/3fdcb554-d28f-4949-8e7b-4992cc4d7a0c.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 0x45a8a251d748b4cb31a88868fe3a4dfe6184dff58ae78806e8fb4dde397fb210. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/TRUM72400068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bb5ba63e6cd4523472b6855c2ff01224df63a277af4e6078cd689add88ea4c5. 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/TRUM72200020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d963768be84fcaf231d1d94649c53a6f3cdf911373cb944733f6e7752219f88. 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/TRUM72100037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca22d76cf558a7dd9181e730064e9bcbac85bd32ec315ac5dc4d1468963c55e8. 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/TRUM72400158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f3c9ec12c4e699ae6b48b2838543ea5d4b63c28768f5d68de3e6705da2fe80a. 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/TRUM72200907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x963fcd1b6be8e063cfc2aa423a95508c08862b28f8686b1a5f55c72da33670b5. 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/TRUM71900023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35beeb5171d2d43f7707330599be13049297b99324acfb7e8eec4f164af224b4. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/TRUM72200835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa27d13e6072fcf8c4699fd09b7d3834ba29b96ddb7940fda3b8f0aa707c723e0. 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/TRUM72000145.
Hastane Önünde İncir Ağacı - Doğa İçin Çal 13
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67f4ffced9105d19001985c3f6bc65e1e0d540b0000db59e88248abe5b9d929b. 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/USDY42374663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3281894216a016512ea7c9aca547ddfc4acd02d8b3a6278f8f7c66993479efe. 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/TR2150600412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x495e221a9acbc9dbf08744f7ed31dd9f6cba2988266c866290af809c384d7b17. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/TRAAA1200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38424a594340c65cd3eecda4c54b2f5e644a5f2653be4a13643d9a620b0b3c27. 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/TRUM71900101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7371d74518ba683f604d07ed3ed55bceae3ba0c1d494236998065a83beafec9. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/TRUM72000051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3697c1ecc9d6c87f01ef6250ea905fe882eb3d1c9ea26ec9f6121c3f6ced2ca. 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/TRUM72000061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94d2d66f7df70d4558bb5e864797b787d00d113c73277ae6b05cb8a55a4a89e3. 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/TR3722200612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f5e96c2727351660fbd5391dbd27a6f8beea382549ba3552433dfb765ee0999. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/TRUM72000023.
Karşıya Çifte Çamlar, Kızılcıklar Oldu Mu
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95e63fcfff74fb54d16cd3d59b597bb0c0e25bc761c11029a73b99dd355b8acf. 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/QT3TB2407519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab8f62bda964cc447c2cacafd8e2467f7ad90f021e86de573ff4aaaa1a59459b. 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/QZNJY2480052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb1a0733fd2b28906845ae7b7db22e1088bc38cbb139420a71677d3a3fe6dfaf. 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/QZMZ92478216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x628b3fb7df43249d9a78183244354344c78181da574d05003600925d5873e3f7. 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/USHM22381488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a14ad24a78a3f64687844b6a74dce65c305e1da72e320817697e6de7c66a69e. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/DGA092219108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe48704d1021c1c5819ef331fd2cd20bcb1fb35ac7d4be4bdd36b72132eac256b. 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/QMDA62298497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1986884d42dc5260d4aa6d7762a83eee2fc30e859e62e421b49791508bd895e. 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/QM6P42224316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41c7574da92b7175f2ab7207a5ace1e4b3c977874595d943d28b7df8fbeca9d1. 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/TRUM72100071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b676c98beda83c6dc8da6d99e94757d57a3cccceb51629865f06e2fc34f14a4. 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/TRUM72000100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3697c1ecc9d6c87f01ef6250ea905fe882eb3d1c9ea26ec9f6121c3f6ced2ca. 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/TRUM72000061.