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 0x6844bdc455b4d99d69d2c54e57a34c9c23225b2c50a055835eda3cd6a93cbdf1. 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/fccab3b8-82be-497e-a77c-85654db93116.json and https://artists.proofprofile.net/proofs/artist/fccab3b8-82be-497e-a77c-85654db93116.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 0x57fd1d4c4d68a839f1e18aae90cf81591bec01c2c7085c3a511685752456cc18. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/QZFZ21938687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbafdcb303f53981ab49271feb40bcf8c11054d55fdbf1916d6d00e11f4b0b0cc. Chain 2 (Bitcoin): anchored in block 959052 (2026-07-21T19:50:27Z), 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/QZK6Q1956181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa40035dc550f6966e9bfb7c07041d81e209c038bdc74dc282f561f263da4303. 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/QZFYW2013775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6cd18e695867f56b3cae9a65d9c8b4f80921ce908efc6aa6fd54a097ddbee20. Chain 2 (Bitcoin): anchored in block 957796 (2026-07-13T03:24:42Z), 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/QZK6Q2011265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c651642a1a9686a3afed2d30252ade93b51a64342517d1752b72fcc242abc1e. 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/TRUM72400112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8484b9c34d447634890fc7d1ff4c116829ab34932a600d8da1ee19e619501879. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/TRUM72400113.
Rakı İçmeyi Bilmesen Tanışabilir Miydik - Live At Riva
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69631748e2054abb01db0196d395ba07a708f10869b0c2f98ef85238cc055431. 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/TRUM72400114.
Üzülmeye Nereden Başlasak - Live At Riva
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53a65efe25d98b4a45a0a267eb7ecc12227c00d5e3460aa26f1894fd75668693. 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/TRUM72400115.
Seni Kimseye Anlatamazdım - Live At Riva
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b3337508540893d0fafb1ddfdb10eedd4678202c957a42b65ba7047fb5e9f68. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/TRUM72400116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cf91a08d1e25b2d03a6d488a9db823176770cf159ae192deffed83857ae1193. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/TRUM72400117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c31c9cb567f1f7297b37556a2e48d9080bcf08df2f99bdfa969ce10b49cd5be. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/TRCAE2400220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ab798b209323353a90ec0a2e5e3239d0b3f69b484aed1855797acbe557616e0. 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/TRUM72200951.
Başka Bir Dünya Mümkün: Türkçe Alternatif
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c651642a1a9686a3afed2d30252ade93b51a64342517d1752b72fcc242abc1e. 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/TRUM72400112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2951bde493f459cc9cb7c3dd16d9c03dd8a7b973127bd37590514957d629333. 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/TRUM72200877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0db7715eb1930fe3f506c8388b3a95234e8010da1b2673df244faaa78d57cd1. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/TRUM72100146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68f801b205fc0f26827d21ec2b6b5775f0a9ea90aebfcc47174e87dbab60e568. 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/TRUM72400027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4e1c473a5cf149cc65e8584173cde8676d90e7262d998bcf3d6342864a57700. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/TRUM72400154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7edd4d6fb04bdf06492ebf22dc206dff0887dea651edf8f6f4127a501f6f2831. 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/TRUM72300013.