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 0x59109a4a1254463f7ee5252f5c2a97c952261e19613b11274fdc8991015fcb9c. 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/604ab4b3-152a-486a-8f4e-23b05caf65b9.json and https://artists.proofprofile.net/proofs/artist/604ab4b3-152a-486a-8f4e-23b05caf65b9.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 0x56d0379bb600595f4f2251954239bd4067548003801d9d58c243f92b73c99e39. 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/DEAR42234446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f6dc02c180f8927ee325a761fdc329acf5be837a41af16149fc0d9718e32ed1. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/DEAR42242246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2cb0164585e4aab60330c36ef8c91b61a53c1cbb5bc92073d0f0b4e57663e5a. 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/DEAR42244554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54f5d8a01e371de505c6621939956ef77356b64c8d0f08671f5990670e482de3. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/DEAR42267708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x181a259562b2234f240632ac542f21d434b65828e8a09c37fcfefadd1263281b. 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/DEAR42299362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae895845010971ee8f14c0582ebe1d0f5e90794296927046917e73875bead450. 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/DEAR42291248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74718aa07a2efa804a5a0592e7ba690f028b5eeb9b46526c262f54c95c09fd9a. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/DEAR42243824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2377116f137657c01c87d8e02e08a015d6ccb7ae24bc35174ae2e4bb9762d59. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T18:47:29Z), 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/DEAR42227464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x496994fb152efe8bbf82f6b295bb79ebeebe70ca1ac24c57144b9d1041a9b985. 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/DEAR42260828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x875b78e5ae13a1a116dad40da78c38773e3049e4f311b055d46b6ff9f3e91c03. Chain 2 (Bitcoin): anchored in block 960259 (2026-07-30T12:51:24Z), 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/DEAR42282138.
The She-Wolf and the Twins Are History and Fantasy
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c5437d569bd3e555a5787d03bd0f5f77b0554075bac27d3bdbabb046d6050bb. 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/DEAR42235443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8c360d7dd563d43a8c085391c7d9234cf5816dbd07cd7a74fcd7e5cbcabadb5. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/DEAR42286267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x059c52af97e148264542d3265de649e16262ffcfb98662c9fececb1f1de7f4e9. Chain 2 (Bitcoin): anchored in block 960309 (2026-07-30T20:35:49Z), 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/DEAR42237254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1b5378e0bf14de5f5f35b5d6d2c9a67f7db077e2c9c9da4b453f155ad8a7b78. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/DEAR42226607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54f0519a555277fcfc72663cd7f0d647a6f0e8a156f616e5519998ce1ba1c779. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/DEAR42260763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ebcd614abdab1046777132337e74b95aefa6b555428efc60bee128e77f003e9. 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/DEAR42245502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5bf486f03fbbd30462745f7eb131e9c07ad70d3375cc0b022bc10f8064e3893. Chain 2 (Bitcoin): anchored in block 960259 (2026-07-30T12:51:24Z), 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/DEAR42293889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8f16f3a43619b9aa44eda29970812849a206bb961a4c6bd5f7a6c86eae38323. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/DEAR42210652.
If You Want to Be with Me Its Your Choice
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x071d3e256f7c074307b7371c085ddba63a4f0f867b50ff085f355cafd479870b. 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/DEAR42252886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e448051d642e237b4128e1cf9aba48a0c786ba526d492db2121ed05f33f7c85. 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/DEAR42267237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcacb7d62f68af3243be8f4adfa57ef7321ca696aa3335ae9e3cb5af6dcc9e698. 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/DEAR42269452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78dcfd20a61e7a999deb8bcec937a5e4aea5aa2013bcef1028f4de753feb97b2. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/DEAR42227938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1729846da96d624e6788cf0b21f485d5eb0b342a3b17a45abef9be8c324b4e38. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/DEAR42288713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24415e3531a7e7fb162aafcecc307609da06e12bd5c3723d5d61fccfb803e2e4. 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/DEAR42250327.