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 0xa7dedbea0bc0eea4720a1150b882b814314723f60ff856d510e506de483c9cbe. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f428ac0a-6384-4b02-88ba-21249ad03308.json and https://artists.proofprofile.net/proofs/artist/f428ac0a-6384-4b02-88ba-21249ad03308.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 0x0c8bf4809032fc852bf3856252829af6212a9ea152fe2b2703fd93f43f022af0. 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/USCGH2211480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceb2829cf5a02421c2bb74bcd03af13a7c85082bfea549a0fa5606a54328a4df. Chain 2 (Bitcoin): anchored in block 960276 (2026-07-30T16:01:17Z), 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/USCGH2211481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe5f5495bffa6ad647bc790066c4b30d9e4fb89d9d8cd4090435a2e507b348b2. 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/USCGH2211484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c5681aa2a5d2468d45d2682e5733fc5a64c26e195ea8d59e3819e40001e643f. Chain 2 (Bitcoin): anchored in block 960422 (2026-07-31T15:27:29Z), 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/USCGH2211486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57e6e0ecce81e89de1b7a16a94b7a8450660bea19f28563a984493b01e0740eb. 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/USCGH2211487.
Fuck an Apology (I'm Not Sorry for Anything)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76decb30c99aac35eb48a570acf458ace1b55e7fb89bdf73a0780fc7cd9ef145. 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/USCGH2211489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bc593e56bad06e9be1b6e71862e5fd34d3de1f425e36345ec70f824fb61066a. 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/USCGH2211493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb341356412f9d0c2c5b2af8bc7b7262a89ca12d559e8c2c63f614e02fc52cf5a. 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/QZDA52356834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9252e09447d9b9337ca88408fb7d88c004ebd655623dd7ad37681213e22ab43a. 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/QZES62331207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb018d5a5e5b55bb6c7dad18f9ee3956b19a26582a4ab0c85ed524c99ea513eb7. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/QZES62331208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b0091ebb75a464c47adde8d8e28f056c224d41333a0babfcf0249250bdec19c. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/QZES62331209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e034bc0a7452ac385a6bba7bf90f571128526932fadbf8c3c77ef7459d125b1. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZES62331210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe1776152149159a03befbc2bc9e9d426ce437089b80aaa8cfdb2dfe06b0bbb5. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZES62331211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde5c43b17f38f49590c0135cdb5035cf6af74951eb23503ae50277988b573dbb. Chain 2 (Bitcoin): anchored in block 960166 (2026-07-29T23:39:29Z), 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/QZES62331212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14effcb91df498b0852ee0ec8fccff975f7ae5e9886cec2fa7161c7919dacb6a. 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/QZES62331213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b651797e8773e8b5c63a6844585c4498f31b7800045d60dc7def1366d066669. 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/QZES62331214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa37a7ada0e2da55a50fae4d86ff5fd9bfdadae717fa29bcba8783faa29d7b9d2. 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/QZES62331215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34275cb8c5b300da6e73338a362b0e0509904fe49f33c18f3dc83cbaaced34aa. 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/QZES62331216.
You Can't Escape My Hate B/W Pain of Expecting Pain
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb455506dfd335dd6dca1444145bbfcc8f823916a83380e7656f59bb0afc746a0. 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/QZQAY2511840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89f7bc0fbebac207a18037a8f35e955d82242f898591b4fa205f87f6defdbd45. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/QZSYP2521428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5253654b59e9aeae7e7cd4a1839f6037977b82f01914c9041e86f258fc77fd6. 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/QZK6Q2423815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb341356412f9d0c2c5b2af8bc7b7262a89ca12d559e8c2c63f614e02fc52cf5a. 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/QZDA52356834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf4f1f3714bc7977f5753f517ea72889cf588d960c23b67ed05065ff380ae5db. 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/GBHLW2000527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3d2d8077afa509b2369ba2b70ece404c2e6cdff851e1aa4f9c585c39b9ccb14. 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/GBHLW2000528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d736adc5cb96066cb88b5545d8fc345fb7a997f016e6f1e34d09f54c2650e39. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/USA2P1833801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b9ae65d3dedfb7e134081c277f2ae71a3033ceb015c2cf1eaa3a0f97f37da92. 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/USA2P1833802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4470224bd068bd90699fa63306da2f9c5a7c16271792b96752f0e4e4cac0a66. 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/USA2P1833803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cb671658a418a59c46fb6ca03cbe440686a59c4d634f20eb55b626fce360921. 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/USA2P1833804.