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 0xb485aa560a4f09d63f65ee4b299f0a21886cfed727add546f16412bd8c607758. 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/a442601d-7218-4bc4-befb-53ba8eabcd5f.json and https://artists.proofprofile.net/proofs/artist/a442601d-7218-4bc4-befb-53ba8eabcd5f.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 0x6e5430adfcba1be6fec5f9da7bbdf8f762ecad9c775770fb1ec986c49b6b6de9. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/JPWP02470236.
This Is All I Have For You - 2024 Remaster
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4e742e9a3ee691ec5bf86042b48677ebbbe91d79f26a1f2072dba59f69a6b2c. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/JPWP02470237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d577ec987f4b318a6c5d1fb87ecd9dfe607700e21175b0eb94dc7fe06ca4902. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/JPWP02470238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5dc494515f273e9c8cf041552f4f219a5b37c0215d94cd9bed4c1b7eb1fc97e. 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/JPWP02470239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bcbeb2ccc39a001ccc8aabd0bdf2202b7285a8fa95c34463839a6661600851e. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/JPWP02470240.
NATURAL EMOTION (CUTEY STYLE) - 2024 Remaster
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80aa2db5a6b68c626b91386571930b77cb453dc2b4b4ec4c3760e6e37d0d99fc. 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/JPWP02470241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5007b62e9337cf87d4fbb1719774af14920c950551b56a1041776326ac92dbe9. 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/JPWP02470242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b21bd7ee1a5a5d2c16e84db05413cbf830c7010221995aa7cb41186c221151a. 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/JPWP02470243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fe64e31b4c3ed0db4a6ca488598d6f04a7fe4ed8a3b431ad338bdaea42d6a53. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/JPWP02470244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3a990975c894c4d0e7d82b88a9e85d8f29a5b38cfefb77da2764de8fbd80072. 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/JPWP02470245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69f7d33eb487fa45a013200700890ca8ffb9cec7f0f08fbd22c6d98cdb16071f. 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/JPWP02470246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2947a8577b130d1ae478c887aaf71b7ebb654035a9b06ecdbb8fc01cb6db66c6. 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/JPWP02470247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bfcac50cfba257a177a6fb16694b5c714fab5e8f4c31f719a8b38dc82edd6c7. 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/JPWP02470248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x764dfb9e49dedc18e65e552b72187c7f96186054096a119a9fcaa2d6b95b0f9c. 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/JPWP02470249.
I'm in Love - 2022 Restored Version; 2024 Remaster
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4921223ac7941ff37c2d6af229a96e00edf664cf7d35b8fd7c73751916a65029. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/JPWP02470250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42ed9f3a73d00531cf15912bf605a741b1a6f4173facd2c9be25a5b69f42df45. 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/JPWP02470251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c1306dc6f239fb9e47edf161218b239a0fd567bdbcbe3b6e2e53e7fe07b672e. 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/JPWP02470252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5fb61c253bdda22038d02380b6c9ec5e32d0520b119e1073dbb38da2e1d6b9b. 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/JPWP01471239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aed4237fa5f3c6988510489c87d5a6cfc35463832710933888c5f56f14d86cf. 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/JPWP01471225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d3bf9aa845b1e734b835cee745f0a9431b9f0dfd3911252ce4b64e27975039f. 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/JPWP01471211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa52aaa750bd25eb48fc64a6fc0ece81e96ee4c7e9fa3889e775db7a6517fd053. 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/JPWP01471212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e8d259bf4166c29c59ea6535803727b2533031c7c6b626d3a7f907a99372ff2. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/JPWP01471213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a40cdac61e361935e4b1a02dc99cef7fd5159523990c32873a3e054e963b7db. 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/JPWP01471214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf6d8aadd7b9a0c6da074afb942523ac69460bee21b0e50725dc7d8f5d414f99. 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/JPWP01471215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x147e7162614c396f86f9cffaabefc7a5746a62537aa6ae33aa20d6e96f9c0b11. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/JPWP01471216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3721329069cf2970b5e2e81f69f0073eadd68a05a2df0f7980da7c5280e5757c. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/JPWP01471217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd45aa49363b4c710f3514633b442c2e982b58fa88f9bc92659f9bd50b775d760. 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/JPWP01471219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb66127b007955358761cf7ad75d3a7a20981cc9d7750fa56cf37ae4a9ba1f29. 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/JPKI08587055.