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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x605c140539d0e6f84afa98d438df3f457d267fbb36b3469a024040187f25e70a. Chain 2 (Bitcoin): anchored in block 953807 (2026-06-15T16:39:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e3db4cc9-597c-4460-baf7-58e7fa2b2d34.json and https://artists.proofprofile.net/proofs/artist/e3db4cc9-597c-4460-baf7-58e7fa2b2d34.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x356eef2b557b13c0d76d0ff3651d7ee232670c2561931c4694043725d9bde7d9. 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/RSA221835054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9a3815eb12a103bd80802980bd984927c9231ae4bda10607fe6ee16f292e0d4. 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/RSA221835059.
Uvek te djavo nadje lakse nego ja - live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed913d057a7c7a95299f1d332ad3132ca4bf1180bec1002aef366ad3e7e24cf6. 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/RSA221835063.
Rekla je da u mojoj glavi cuje gitare i bubnjeve - live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1243acb0c4fb68c7bc0a9bde4a72d724228c5fc3f397e06cfc5c9a6f2e1b2105. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/RSA221835064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02f2e7b7cbe35c96c61a63737acb3c154ba0132356ee10bb55a27073629b4682. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/RSA221835067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7537c4352c9fafc78e9b00d4c188d6861fc22b1cf701d22e7d911b06413ce4fd. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/RSA221835056.
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 0xca04c35d326f0ce90c76c4a4f48e53ab899d8e9c48bc0cee3eb29051d97c810a. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/RSA221835060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bab2acfdbf568e63519bda6e8309b68915a603f50a01443e7d41e2e33717c66. 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/RSA221835061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fb3fd7337260a01982b0dbe0e5d6396deee89aaf48b1d23a7955099ed512109. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/RSA221835068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x458ca21c9e6242418dbc97c4272dcc0ebc0e8b5521ebbfe19d12c09f210193b1. 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/RSA291700110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37d85348592ceeef343b808d6845b265a504d010a129296496b9a3effc70ec73. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/RSA291700112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d88e222a8e01e99c79591821842a22d73372a68fd3ec15eae0291889c10e1ce. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/RSA291600004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58fda4a3bd0ae3d160fd223451509cf9165e00edea4858fdfa920f33bb47a000. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/RSA291903482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41f19f9bb35deaa82a36f4d7ea8a91329be1d46b0f61f94864de5c4657eb9313. 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/RSA291903485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d96342070e701a81cf922744df0b4d78c1b20a0d662a96a7211df8e5d185b4c. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/RSA291700109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x420a03e009854379f318fb263f89e813df1c2457c9b2eadc035e16110275ae24. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/RSA291700114.
Svet Je Lep Kada Sanjamo - Remaster 2021
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bfae83592bb5e5dc1bd48913b4d6be9894eec476f0dae5d4a2fdf62ee84c8b1. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:22:36Z), 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/HRA042199954.
Tajna Je U Tebi Skrivena - Remaster 2021
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e43e831fb9a17982aa78e14b24c0e5415801cfe14f71c7cc33b5f585265980a. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/RSA042100194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb048d3bda63b67aa1c941abadd7e095c49062c6b0c3a8c89396567393c3881b. 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/HRA042199958.
Leto Je Bilo Kad Si Otišla - Remaster 2021
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x185c95f9c49ad0f88ff5e81ca950c5a7e9d0d00bb7b9ec87dd858d6297070d27. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T18:50:17Z), 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/HRA042199956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7ee9073509ea8254e825b3bc83731a04fd325b2ee64ce0cb8d6f62cb71421a5. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/RSA042100157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37171dc42ea8487c4c950433408f7f315eaa05b0758ee33da75bd35d8e27d0b9. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/HRA042199955.
Te Noći Smo Se Potukli Zbog Nje - Remaster 2021
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x895e206af571a4c1773e27d959fd7993443b96599317465df1ef823b34dee528. Chain 2 (Bitcoin): anchored in block 960407 (2026-07-31T13:26:30Z), 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/HRA042199959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf04c5677f89fea3445a06a5257a8976dd65d91de282b22509ba0c7d992e7f59b. 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/RSA292100015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2ad25a830b003bebfb05ba36c92b77d9d6658b0717ebac36faffe01b169da53. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/RSA291600028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2637cf4f43b38b2a0b6a286fe8b651cdc7a22721b6aea3e91b12334ec6acd30. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/RSA291700017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd72a43a216c334dab336dd817bed35db4286f851515bd687f2fff7d67f694238. 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/RSA291600047.