Pigs Pigs Pigs Pigs Pigs Pigs Pigs, usually shortened to Pigs x7, are a British stoner metal band formed in Newcastle upon Tyne in 2012. Their debut album, Feed the Rats, was released on UK label Rock
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 0x797c894b903cb77498aad7b8afb49ac99a1bbd0abbad487c9f44ab85ab9212f3. 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/5ba6b759-5eb8-4e72-ac71-2d4192402971.json and https://artists.proofprofile.net/proofs/artist/5ba6b759-5eb8-4e72-ac71-2d4192402971.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 0x5c0fec766345ca324a86b1dfaf5915f38e537db7cb6365ed58ba31468c43ce37. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/UK2SX1701201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x710781901e985f8e0e51079f20e60aefc3582d389b4f930f3b7c67b1ffe4f0a4. Chain 2 (Bitcoin): anchored in block 957833 (2026-07-13T09:36:32Z), 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/UK2SX1701202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3150c5be791bbc914854f19e9c0fef56792f8ddb871e3a867373e15e5e3d687. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/UK2SX1701203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56e2623ded32075c8743cf47cb2143119773de536d821dff69381d11298a4487. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/UK2SX1809284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc035ee2f70fca16f3d38a334b9165a6a3743bffcababbc1158521f1ce5aa0c82. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), 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/UK2SX1809286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b9263f7418d4177d3cf4904e77c3b7780b0e9b4cb032d7f2c1c0d9ecd0479ce. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/UK2SX2004303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c3143723f271fecfd75cf4466d6db367d0ef11d7950b124dedcf5d9d82753dc. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/UK2SX2004304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaa0a3ae693073e67c769d17176c5014ad84a5d6c45a3cecc8de2a9ebd70a19d. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-02T21:01:51Z), 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/UK2SX2004305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b2a385c71ffaa2075864aa30f3f0100e0e62dc5c0c18cca842ec7582594123a. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T05:02:52Z), 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/UK2SX2004306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3796019f678659e11ecca32c7dd0dca1490e9f9a88b165070c26e142eac0115. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/UK2SX2004307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb99f2296e232f2a6959b09aeccb20f59f157c2bed510503bd414561b93a27d61. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/UK2SX2004308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1717fbd2e18af0afe28b6808a6f5e98452e1aded4d40e6ef79772b3c7c8d6090. 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/UK2SX2109191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aa33a629d5be42520883df978c4149a4b4066285ec2c31b7a8ec31f7f4da97c. Chain 2 (Bitcoin): anchored in block 957680 (2026-07-12T09:07:22Z), 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/UK2SX2324022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fe79d6e2755768c4f6130c1d3df76c7c0e1a5703a3679953b8413af25ad8e21. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T01:08:10Z), 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/UK2SX2324024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x450126b81c350c3b8074851f183ede6933eac2e0ae2e37a85c5a484b90f2229c. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/UK2SX2324026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2817c70d1123b23ea3958608d0e0136deba93713275c96085968a5e1791f16b2. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/UK2SX2324027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1fde0dd39e1b638a2af440fc673784095493c58e373ce157aaa344fe78becc1. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/UK2SX2324028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aa33a629d5be42520883df978c4149a4b4066285ec2c31b7a8ec31f7f4da97c. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/UK2SX2324022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2817c70d1123b23ea3958608d0e0136deba93713275c96085968a5e1791f16b2. 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/UK2SX2324027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcd657182bcfb8ba77bd39584f5ff78eaa55dfcc709a32e9635b1750ff444e03. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/UK2SX2310281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3d08773756070ef45b6dd05a19fc79c3dab07dd6593b117e1d7141d26ffba9c. 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/UK2SX2310282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dc87e9f4a77fb9098b5fe720ec79ce2699a53ee951b6c920f1edcdc285c511f. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/UK2SX2504042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ec562639bf66b76cc7e565d19e51b838d79c8316f64077b2a3611fa814545b1. Chain 2 (Bitcoin): anchored in block 958514 (2026-07-18T06:54:37Z), 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/UK2SX2504045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ef05d70c7a01572704102f6a600ad389559862b5c84ff4ea0e166d07a9189ca. 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/UKGD41900016.