Swamp Thing is a superhero and antihero appearing in American comic books published by DC Comics. Created by writer Len Wein and artist Bernie Wrightson, the Swamp Thing has had several different inca
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 0x1dd4ce5796635021cb1aa0ec7b3953b3126bfbe4697973dc65058218df804cba. Chain 2 (Bitcoin): anchored in block 953772 (2026-06-15T10:33:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c8112174-68ac-4f6a-b66c-4e638a8edf59.json and https://artists.proofprofile.net/proofs/artist/c8112174-68ac-4f6a-b66c-4e638a8edf59.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 0xa8337f2dc272c4d17b8c9b1b6e26fa7b10ba0291f17f0428aec243ea547976d5. 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/CA91V1700006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fb3302105b9de5d8971eecb2c0b645f2068ec36e0d8eeac98caf228a03dc53d. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/CA91V1900003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b0674beecf1a9b4df3037171bf6655ea383c7b98138a552dc4f6f1cfba16a59. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/CA91V1900012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5ba08934e580decbf6194b698526b095d7970254b78451669210934c26a0515. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/CA91V1900013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed2561a19b87ff561c2d1e71443800c5c17b5c78c49b9df3116a1420aaeb9bc6. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/CA6E82000141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dbb17bfbff4b7c3cf46c26848b5324d6a0998d979bc8fcabf0a15fc5229ef6d. 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/CA6E82101109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23270eda50bc47a36aa4b107b02de38186d2d25922d539e58dbb7b8a02861b74. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/CA6E82101113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5f358bcf2fc42674f1634e6a770bdaff6dc9422a95047ccbe88f957b9580bc4. 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/CA6E82101114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x456b7039109437665b11c0d301dbc8a899bd98fa31bb0cdfaa5eeab5728decc8. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/CA6E82101373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x757065c87856287f536979b897000374da58df39a181df1ebca72004805ad1ae. 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/CA6E82101374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d5b115faaae2b689176a640dcba5c196fcf3da36ed3964818f15a916ee04436. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/CA6E82101375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef92c4cc3a29cb652a8926b782e7b788a38548019626db3aed8cbcc4143d857f. 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/CA6E82101376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb6d634ab1a3b7c878324b2d662509bd5479455ce307ab87189c99dd3f752b9d. 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/CA6E82101377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38aa37b4503be34a2752c5c566bef9e2ee7b7378722b1e7bfdd6537f6af763fb. 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/CA6E82101380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd425a118f5d68142d40cb16866b1317ec77dc82406fd333c1f5396ccd634196c. 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/CA6E82101381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc4f194165262f8633575adf6d6199903032d1c9de4658317035e898c1fb4b84. 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/CA6E82101383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdee3946a2ca006869926240d123497e31bee8a584e8e8285c598d3c04b791522. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/CA6E82401602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea39184ed1c5ed41d5182d7b6a5988197c3ec3f071e07ddde2e555c0016bbfa4. 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/CA6E82401603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeafb7a4dd5cd8c2bdca6093d239413f2cf964bbadaa89cb732ed90ad1c18edfa. 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/CA6E82401604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4fb0a657ac1e637145a0a0ed48f4275c63d3df1a9ea5d8f218dc7aaea23b7ba. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/CA6E82401605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cb5a870bf2f29b2fa4dfce5d6a9f2011bc6f0c4ea5b86bf946e941feff79ad6. 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/CA6E82401606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd74ba3817a4ba642a1fd596876f82c91ecc48d21b1318bd4b3c892a7e7b482c. 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/CA6E82401607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x241cdbb203dc011ae3b7b0e4b853f4d35b733783cafa97584cf6b9136ca0008c. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/CA6E82401608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa96bcacb488f6c8d6e56b262958558f037d9506665d8a0b91f24df92f260d8e. 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/CA6E82401609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11a6c0d1e5f751f8c53d11bb0254498327809ab8d21276eee491a7160acb92b8. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/CA6E82401610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3542b2821f49e84a85dc6978563d1f9ec51c84830695bc8095f22b0d8191732e. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/CA6E82401611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb79cbd568d6c45b52616e942de7d2f6b43d62fd78866084d198c69e2f2d572f8. 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/CA6E82401612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18271e0ae609c4b1770389a92e12439490a21f7912700f15176f75fe630049ca. 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/CA6E82401613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x944dbf0f0f4ae69cbb450a6c11394594ffb50691f15a994f11b63b91811b4599. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/CA6E82401614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f3d70fecf5dbfd62760cf9cd8ac71c67b6e52c2c4d6d9a166f594607fc2d23f. 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/CAVY41600120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69c15694b19bc96ea10db7bef9a4bbb32c019ae1066b824e3b173bc0222cdf97. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/CAVY41600127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bce63e61342c9d928b85732a16905d30cf597885f056fcd6944a1d859333cfc. Chain 2 (Bitcoin): anchored in block 960383 (2026-07-31T09:50:37Z), 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/CA7181900015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3aeb07e79c0c0a43badcaef7091c60551c3b08a7ddd08fafb83bfe70265fc7d. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/CA7I81800015.