In immunology, antiserum is a blood serum containing antibodies (either monoclonal or polyclonal) that is used to spread passive immunity to many diseases via blood donation (plasmapheresis). For exam
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99f2aaf8150c8735b3814c095f484064963577bec81097cdc397d966acffb47a. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a1536250-f275-4fc8-868c-45d98e7cd62d.json and https://artists.proofprofile.net/proofs/artist/a1536250-f275-4fc8-868c-45d98e7cd62d.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3c3673cd38c7dc42805e02921bc138fa7eeecb399fc6a5c1d7b2e8d475427ac. 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/QMDA61539010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bf6dfbc83969d1c6943d22641d7b387c2787d5c3af2210ebc7f1355ef72bd1d. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/QMDA61539009.
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 0x17a3d1ce4bbaa179f26e5a1251a1da258b9925b23fd8d79718a8c9427390660f. 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/USYBL1300223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13df7bdb28b1c67525400449c1be8619b86fe33e9fcf2a08c83b86a3c329cb1c. 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/USYBL1300224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ea51f5007076a964d8243f724a8b4d09bff8c5245fc447ad84450ec23fe7a88. 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/USYBL1400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdde8154679ccbca694da2f44ea2bb668e3d99bfaeeb3e55a700f993369afd0b. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USYBL1400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8d819ed5522c27bc02b71b1d87633bab5d2f393c2f71fcf33f92c97b85e47f0. 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/CA5KR1500240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74ec48487a4ee50f7c419f809d6f02e26296ec581b470f9ade7f1ac4835f69eb. 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/CA5KR1500241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecd40bfb30daf9b6bc0b867b9840163f62cbb3d9620593381537e394c12feefd. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:46:23Z), 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/TCADA1760229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36166292445c1e5dfdcb38aa947aec25214ad851526b6b083070b74379be47fb. 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/CA5KR1962323.
Destroid 7 Bounce - Mayhem & Antiserum Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2d506cc16a795fc661ae929c0fb60d63dd4aa83de2b3656d2899e2f3f603fdc. 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/UK7H21400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b015c4bc250a956ab29974288e71551dba992ff7bcbe489ed23b5e1db57c926. 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/CA5KR1531597.
Breaking In (Ft MACTurnUp) - Bro Safari Remix
Breaking In (Feat. MACTurnUp) [Bro Safari Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb2c786b8b94f330207f9b0bd13ea0935bf85636d1fcbd344e0040cb0def42e7. 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/CA5KR1530343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe713d23c67bc7f2c21645a746ee1e6c4a40279ce27f00886366e8bc825061fbf. 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/UK7H21500136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0081c6d3f7bb4acf6b91f6e4df4d5512d05aa8849bc45dd2ed3fc0ca060f0f8c. 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/CA5KR2365179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0081c6d3f7bb4acf6b91f6e4df4d5512d05aa8849bc45dd2ed3fc0ca060f0f8c. 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/CA5KR2365179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe941ec0f3b36d6886a94e15d01bf3c3a689a2cfc95a9796ea41b44255d7e131a. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/CA5KR1530685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6d50603acfdf1d48fa39992d828da87fe5e861550e061d27d9ba129217ce684. Chain 2 (Bitcoin): anchored in block 960285 (2026-07-30T17:26:40Z), 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/CA5KR1530344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb07e72ea7729eea3893010c74a69f8f50a269aeda10bb46e1387ca9340c5949b. 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/QMDA61539268.