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 0x199ee3f30dd600eb20df007bad3f29a0ec889b26494674bffb5ff59e79523901. 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/413274f9-5968-4da2-8593-7a87392d082f.json and https://artists.proofprofile.net/proofs/artist/413274f9-5968-4da2-8593-7a87392d082f.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 0x09cde0bdf1c9a664ba1707e7b59719e8ee86914ae4da95e6aada9321e06963d9. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/TR0440903901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf935f56166423665bac0190d8055af221fe44dfbe29285ccebac10ac4d35348. Chain 2 (Bitcoin): anchored in block 957554 (2026-07-11T10:39:45Z), 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/TR0440903903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06b6c8eb4193d3cff197db0d3b4963d9dbbf1c4e3d1e68f02db5e88cdf18e622. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), 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/TR0440903906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb27f06c287a4c15ea6361c195e699f40b6b116fcc24a35a0c121184d202792fe. 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/TR0440903907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ec76291a2ecf17aea7861a7abe5337835af9b0a5eb55b19d403ae3da6369b69. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/TR0440903908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57ba9053ba7985092dda12de854ff296cedd31a92824bded90aec73ba9456125. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/TR0440903909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae37284b9e7175f07284eddbec71cb5c4849a3f04b7b0195411f8dd53ec96cf2. 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/TR0441005301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16523ea93542e9e1c9afb2a9bbfa072a984cd1b5290c20138f0efaba793c3328. 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/TR0441005303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c5e3a2c47cf45ad2ea11bae372689f4fc49dd27398a050baf0d8423694c675d. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/TR0441005305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed6a3d4c510f8ef38e9dfbfffef32ec2c99fc4276ee96d32aacf1f664e1e4702. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-02T21:02:00Z), 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/TR0441108705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43d9f81088eed71475683c8462c5ac751c21491d2427489f523d42cbe2d804ab. Chain 2 (Bitcoin): anchored in block 957834 (2026-07-13T09:42:16Z), 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/TR0441108706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa65b942c3cf2ff379d08ed9ebeba4bfb4d1c573ce9e9b683c7eabfee19100e1d. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/TR0441108707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe98b363c32549b463d59ef53bd307c7c83c1e037b313182c4fd4c1c5c030c38. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T16:17:58Z), 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/TR0441106801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8d416a2ee8dda53640034105222b554d83036454c775ea8a16daa59da4817d1. Chain 2 (Bitcoin): anchored in block 957550 (2026-07-11T09:54:43Z), 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/TR0441313209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a735d74472f341cfd983439af8bec72a4b125540509a734b0450f6e482a710d. Chain 2 (Bitcoin): anchored in block 957551 (2026-07-11T10:03:47Z), 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/TR0441313210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x708bb654f844a671122cbcdbb62a294a8214b8bea62747466334f917b2d5a1d2. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:00:13Z), 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/USA2P2125923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b952892255eacf73f1ca526a50050f315bfe6eaee0e42b71e2c035746ab38af. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/TRCDY2200007.
Yüce Dağ Başında Yanar Bir Işık (Live Performance)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bcda7664dfeac11886d408c8d19aa2be3213e2d09979321b669d0c331ba24a0. 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/USA2P2264776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7419b916d40308ca1b5ffa0653db694908fdcbae5510ea4c1c3eca9b7382045c. 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/TR0011700457.