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 0xa6076cfc11114250dbec907ce1ee9986bdf57c685d57a01a00e2c5e5dc705ce8. Chain 2 (Bitcoin): anchored in block 954693 (2026-06-21T11:50:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e48fea6c-8112-4be8-8d4e-cb0c263b3d88.json and https://artists.proofprofile.net/proofs/artist/e48fea6c-8112-4be8-8d4e-cb0c263b3d88.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 0xd9e8339b35337b105dc340a00c123d34d728c2e5fba4bfa40f309515de06cfab. 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/UST8K1710045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ab3f492d018c627960d575299831853521e9de756af2218d10bd8960593d449. 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/UST8K1710046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbae1ff9152d8d1d454ccc98f376a4d7c30a61b355a87468393315f69d812e10. 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/UST8K1710047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x436151351e138498759c6b4f3709a75a9a00e1e2a9dd11417fa7d269c9561cfa. 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/UST8K1710048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcd6b67fd18368e1181d3799e3c6310c6519095d8664dd45469db696dbce138b. 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/UST8K1710049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5db4edcbf5b811844eaf2219beac5a52ac8952748dec67e7fac4daecc3527f7e. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/UST8K1710050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc87a5a339549092752ec5e6d6d8fa18177a3cc6922c01fd7d80ecabdd436338. 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/GBSMU2015877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2fb2b423e734dfbcedff901f6f5120af90636d7090863953ffb5c797c2af9c2. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/GBSMU2015878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbebb09f83cf0762aa9fa0a3410d7c76a43e97201d5cf570464ddc402f7e4773b. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/GBSMU2015880.
A Tribute to Oxymoron - Fuck the Tributes Here's Our Noize...
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x270a548add9dcdcbbc5a8debafa172595d8f75fbb4ccb639fe103eb8119e444a. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/DEPI81800103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20701f087a63801e7ad71755872bd8e7c085c2044f85841f6b6334a18f8104d7. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/DEPI81800104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70fc3c653432f3c7176e3c36756f1a16eccfa91dae9d1d3fb2b833d5cb68bb40. 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/DEPI81800106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe88e6d7829e0c86fe5a0e85d363096befc97c9984c1bd84668cdb7db1808000b. Chain 2 (Bitcoin): anchored in block 957198 (2026-07-08T15:54:54Z), 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/DEPI81800108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49fc64b9c4c2142f66efa0a646f83c35f5d40289ab70994b64ec83b5e8edccd6. 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/DEPI81800109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d80c32d8f80c8210bc0520a7f0d06d36250143a3054a31c4bbaa82027a95eaf. 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/DEPI81800110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cbd1f9888309fe16671b78da82b43ce0dbb4c7eb3cceabe25fd617cbb4cc462. 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/DEPI81800114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x386ecd743d6530411e4b49646461936291ead992af07e6835e426799ebc7de95. 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/DEPI81800115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94fda386afd9267a5457524166bc9068a9f95c44c717f0b0b543b08d91d6ba25. 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/DEPI81800119.