1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x468c026fc99e856524924654e5eba7edf8d390bc27d19103bfeaf5073b7d11c2. 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/838c9b7a-b01f-49f8-9347-c835864338ff.json and https://artists.proofprofile.net/proofs/artist/838c9b7a-b01f-49f8-9347-c835864338ff.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 → block OTSBitcoinBlock must exist at that height 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 0xd84263a9d036d4ca1e89fe0abc97041c0abf1d1e953d7390eb8048f521bb690c. 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/JPB602402525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80f7523c3d6c3d35f516b125370b842a8a96318b51398bcbdd84f19ffdeeb6e2. 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/JPB602306867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c857d6d6fee9212df6e8a81fceff1d62ce1315ee06398e7da2cae3891f2db7d. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/JPB602303549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x114b674b25b035ec577fedd4752cd8462e28f37ebf6b70288f04f2af4e8e3fb6. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/JPB602302946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8edda66502df48fef843ace4e34e78bc56f929060ba6725ad5d9869899370341. 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/JPB602301350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cff19546a83b0e51e4595969e966ab5e4be56314301bbdb57e617920c90415e. 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/JPB602300644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7faab4387c89583643e82505b10428cc6c0fff7afb275837ba415dc669616b1. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/JPB602204165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x901e7bb1db481c8f14007a05682990e6075b76d6c35a8f86ef5440a9bb3c457b. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/JPB602203261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb57b0cc21da7a0acb9ff461e1b288f4e122a626cd2e3b582a644e6ba1952872f. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/JPB602203479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3da123bcff753a49b2ec7c90bde583d0468039059c1de0a11708e8cff08e191e. Chain 2 (Bitcoin): anchored in block 957011 (2026-07-07T08:25:35Z), 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/JPB602202502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x641457a2aff520abf25ea2db9ebdcbb644f71b660e19404f9d6093735a2134be. 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/JPB602202161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1418a6398e2bb4a96cb765d0cc7ba1e3483342332bec821d8d93e9d29c63b818. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/JPB602200918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5945d98bc2471019fd9de4714e42b05db297d3f872cb015d51397cf8b7c4b8b. 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/JPB602200327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc2526e6c02b25b634709aaeccb13805bb281d9e07f0a5623c32f94a78d68adc. 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/JPB602103678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x064e0d6b987848fe9d1062d717893e2b546b6eaca99dcaff74aeb0d6277574e8. 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/JPB602103090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ed39d1e2c0cee4045034d0677a012475a858296334ac909e6450605ec3c9c70. 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/JPB602102669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff41716f6fc8c7cb3b9c682d9303dcf7de8988a7f47faae2cc2b24a7191988be. 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/JPB602178559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x522888f8d48ff696a010853c56e0ef332411a1f3141c81985a87ee5252b72aa9. 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/JPB602168887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba0c85631fe0d2d0eb92ea2ec0dc0767f292186df7281da6267356d773f7035f. 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/JPB602154037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80f7dfd4ee2aa1a274a74e3dd1ea5d69d1d6ac8438cc0c0b4dcdeb1aa348ceab. 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/JPB602159114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba0c85631fe0d2d0eb92ea2ec0dc0767f292186df7281da6267356d773f7035f. 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/JPB602154037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0659ce98fc6df4a81696cbafe49d735a64f5ab75d7ff92faa19be163f46ea04e. 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/JPB602091447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58c0380b4a42c53a38cc2274b4238f293dc86d46b114bd8363045227b3676ace. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/JPB602084149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c6201d6b0cfbb3c2bfbe901225cf52325d7524642c3c34ab787a9cc048d9853. 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/JPB602080329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98b18e7c9762b03968e48cf927776c2aa63b1c11764233e82865bca1a7d3897b. 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/JPB602201732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddf1580db62b96425a4625d8581ace14f1865bdd411fd20bcb8b6aeb350f7e75. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/JPB602100335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d7debbb4093d0acbd3dc2abb22e4837ffc2f6fc086b8460ad2c74fc4d27f76c. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/JPB602003309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x328922b53e9a75a0ace29522642f99cb58c85e2486fcc96027fdac288496ab47. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/JPB602103064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x426955fba85bdf7c80fdcf6b87e895ff83246f610651179494359de4e5414754. 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/JPB602101887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88155eb967e6079340642c7ed21669d0f3b2a254079365c04306a9a2c339a33f. 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/JPB602102261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x760d289c95977403e470616a8c59c3346a1eb424de39598954773e60e290aec9. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/JPB602101368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf71d1a3c72dd7878a8ec9016e3df30e978c850c2f5b99240ebf38cedc9993596. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/JPB602100647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3acb85054ba8abe6951379a6570a0581841b0c31ed8c28691e6a050aae858755. 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/JPB602103604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x260f5357344cd7123430cfd3dc48c954518c281cd630cc17522db211e2a1f091. 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/JPB602201741.