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 0x913b5a1be51978151a8ed0ab3cbd3af5eeef48eaf102047502262b41740e44c4. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8fd5f255-e0b8-4ce7-b182-247821664749.json and https://artists.proofprofile.net/proofs/artist/8fd5f255-e0b8-4ce7-b182-247821664749.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 0xdc88b3d0fe96616f58b8f519a3614148cb7a4df0eddbe81293a937c35a9a14e8. 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/TCAFB2053216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x427e04497be90ebedaada1ca3b79a0be990ce1f69fd3b8f51f0eb304c45fb54b. 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/TCAFB2053262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ca048de42c31ce67f94bb569e108252d029259ff495ef4e86a3f60bf6f3031f. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/TRAGT2200187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49a87f9b6cc583611fee7008349403e3cd97b4b3b1381f2963e7f666b79afc27. 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/TRAGT2200103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3d920c63bb1c7ef2415a64220d8a42e0247bb3595ae41b4afb8ea356418c5ca. 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/TRAGT2100068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c7e4e2d512fbc0b6c97d734eee68a900f33153395ad7d67d08f8cdad8ee5a39. 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/TCAEO1964494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec86f35f086f9ec81319f880d4947984c87d7c1bb4e3aa202440e6ccca194a43. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/TRAGT2100056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x139b5da73318dfb0fd863dfaae7ea6016fd4b1d712f6d9f2cb83b810eea0abdb. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/TCAFH2028620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff4a1c4fa09ba3de9add9483b697b3461f121a9ecf99a310a67139e80d2bde63. Chain 2 (Bitcoin): anchored in block 960157 (2026-07-29T22:12:10Z), 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/TCAFH2028628.
Gel Bunu Sen Çöz (Yarım Kalan Aşklar Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88179a7239b9547f263d7c7c8519d4ead0c39c4e501d371885a149099e8c6943. 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/TCAFH2028639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcabcf3e14fb8508f9f0fe79846ccd54b2b68a9f0e6c9758c94f2d65ca7a3d472. Chain 2 (Bitcoin): anchored in block 960419 (2026-07-31T15:20:33Z), 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/TCAFH2028661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89079c1fb5609c68bd379d1df0b3fac6070f05d03370f29093f1e53a8031bc89. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/TCAFH2028668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc27437a30c8fa16e49fe1506692fa5c3640030871cd7df936d172863b9b452a7. 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/TCAEZ2095255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcab4655113fcf31efd7d9926b244f60ee3c937039f6829b7f02731fc31666ba1. 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/TCAEZ2095419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cada678e539b9eef9fa374ca00df7f73a32e92380e1804e44fc3fae2275da98. 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/TCAEZ2095438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c9104cf909f79dccd9537b1a34c3b6c0470936f6392f19d220218478ab9513c. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/TCAEZ2097017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb69bf05f4b1cf333e6301ae67b3a648646dad9ae6d507b26235b4b88e69c7226. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/TCAEZ2097086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d2cc7086d0ef51cb865c417d6d72c17745b80036006a6ab569e1c0fab3a09ef. 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/TCAEZ2097088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3cad19c852cdbef15e4516f0d9d03df9ce3bed62c135148a8b731767b83612e. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/TCAEZ2097093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23c40d532614f06d4fa10c63dcf4093b3548387dd67be15d685796b0b087a179. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/TCAGQ2257820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ee47633e8de8dd36a2950809b9a248678c8aa27685628cdc813d729c5a8f1bf. 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/TCAGQ2257853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x719119039e5bf67aed33728c348bf902185bf87fcab9ecbc241f421ea0a84fd8. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/TCAGQ2257874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec86f35f086f9ec81319f880d4947984c87d7c1bb4e3aa202440e6ccca194a43. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/TRAGT2100056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2397792a8bf7e04d54c1e05dbf26e55f9ac3f3b54e20639cfb80de3134460100. 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/TRAGT1300081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7796c8ff7e066e2b1ea333b70dee0725d34dbae82301d09bf444e14333f38b98. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/TRAGT1300069.