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 0x31d8b3675d5afa3c50158cf439e81f72f199ac88c5c004c5969c5a413ffd8ecb. 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/066f2593-506e-4662-be5c-3f4d02b11e11.json and https://artists.proofprofile.net/proofs/artist/066f2593-506e-4662-be5c-3f4d02b11e11.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 0x2b4a8f06c30338194e7e75c7b029367cac84ef7a2c158ba930e7c4b7210e5598. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/FI9PF2000234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7aff6349260bea9840652308602ca1de9621de59069d1691c10a482558fd5a82. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/FI9PF2000273.
''Happy New Year!'', I Shout Through a Crowd of People as Fireworks Go off in the Sky. Can You Hear Me?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x802f865cba77d1afa761c1ea1c701e6bcabd25e24d114411390415df3ea98fb2. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/FI9PF2000274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x851ea826f7e9d7cfebea19599738244b5c306231f1f3343a9f91ddfd2acec79d. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/FI9PF2000277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x482458408cc06b7e3d08463e61dabca951cf5465cf1825e550202990a2992cdb. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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/FI9PF2300056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10cc65edeca5654ba8de85449d9d406891c8b799f9e53a464ddb481cfd4165db. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/FI9PF2300068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x482458408cc06b7e3d08463e61dabca951cf5465cf1825e550202990a2992cdb. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/FI9PF2300056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0330f0a315ef1bb6aa85925f3e098f6abbe1c2e92d988e252a660a4b666c2dd. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/FI9PF2300069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60b2df9e12d3f30b3828bc11ad1561145114e54f6275e3a37c6571ca05d4deb8. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/FI9PF2300070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38fc6e109b071a43d7e5bd6d39cc7c6d41ba49c85ba5a97109ce5b4d1eb28c1f. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/FI9PF2300071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x232f35a435e89a116b87f52a77b1725e056cf44bde9e863ac26cc3f2fc3fa4af. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/FI9PF2500002.
Estrogen - Emma's Delecstacy 200mg_ 20mL Re-Dose
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99c8df21a12327eee4403235e57735902ef61cc720d6368b842110bb94c4beee. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/FI9PF2500003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9a955ab4db215cf7c1dbebc5f7832935cce1597ce5f0c9b21ede4bfe2466cda. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/FI9PF2500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x608728fcc2486ab670e6d14b445878f00f052223429551a08af74d8faecda87c. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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/FI9PF2500006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12bb3d7cc85b0d29a195283346c38c20b0f189aa8e0055caefdf43dd537b5da1. 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/CAL451807901.
Ones and Zeros (feat. Knife Girl & Kitty)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83d15fe06045b96ae9e9ad7b3d836fd77fb8c486f4b88ef199ada846d1a5ff3e. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/QM6N22231888.