JJ DOOM was an American alternative hip-hop duo composed of Jneiro Jarel and MF DOOM. History On February 15, 2012, the website Pitchfork ran an article stating that JJ DOOM's debut album would be ca
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 0x03b15b9c70d17c73a071bdca3c16ec2ec62a81a446aa39c7336e8c60c0f3bd41. 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/7e38e76f-5e2c-45bc-8219-6d322e2d43de.json and https://artists.proofprofile.net/proofs/artist/7e38e76f-5e2c-45bc-8219-6d322e2d43de.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 0xec5707c794203ff1ef70ddf6bbc24042ac75b897dcfc2ebbd1ca06725c2f0c90. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBMYF1200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2ae04d8eaba6fb67fa0738c68e6cb402166424e03ad9ec6e853d02663fb5735. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBMYF1200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25015e69b9e133990b3724944c50d8b54203036ceb1c6eee0c0f9f6b46ffd726. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBMYF1200010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb2e5d7c35aacd6ae7cca3c71110c4457f66e45a165286555d879a27f8bbfbba. 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/GBMYF1200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62b48e31d835ef0be1e6026264e47a3b6cec08d30da81027e6cf589c34d8f5de. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBMYF1200012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd28f432c69d939854326a7b8b5a02acf4a071802904d79d43a99dfcd2f55753a. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBMYF1200013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91d95ba59c0eb5a3b8d638ee13e774e5b1a4968e4ce0a12523c799dbd735db87. 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/GBMYF1200014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba1ac52aa81b83a912e89e670f0b026179fcc5a22dc24d442aaae24415c615af. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBMYF1200015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x314613348d4d6b1a433d6ed9f79ae1cdb182f3529471cfd12129763883bc9194. 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/GBMYF1200016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fd9969012107ea7eeada9dee1b459a3400ba9aa7d59f42919e86f8b580366d9. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBMYF1200017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa70320b3d64e206bd0cc6a4a59c5b86256984a1f7195068f17fcfb5e8f04cc8. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBMYF1200018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x971388240aa07d27912a3d05741581d1b8192cacbe302e37ca8c9d7d028a7ad6. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBMYF1200019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4180c2b87b4fc3921e75430beb9f5627db249a3df082d534faa1efb7780a2ef5. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBMYF1200020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa94e89606586626516053dba8a4af12fe6408fc0702fa845a7b327e514ae3590. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBMYF1200021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd877605ac0a4dd7c2a0e31b9812294dbb318b5f8c9c1a24a0016b950c2d5f081. 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/GBMYF1200022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd28f432c69d939854326a7b8b5a02acf4a071802904d79d43a99dfcd2f55753a. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBMYF1200013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4c51528d1f1bf7f7902512c5f9c5f9343bdd607f93bef323a385b99f45f5df5. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBMYF1300029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x296e804be4ed7d61e15107ced5d6fabfa35a79bcc91ba36c2f07e1d86c44a494. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBMYF1300031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a8bba2b573bf14c736611d079e10ae909d754335ba15bd14866fadd48702aaa. 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/GBMYF1300030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62094d908ed217768f67a14297af786386c94b5579da96a10093b733e7465905. 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/GBMYF1300032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8bc2705a5ba3a74feac6c6b423d806999c9f434872a1efad25e921e3d8966c6. 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/GBMYF1300066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35e2115ede634f75f3c5c9815a93dfde7eff1a2fec15a8d6241d49ad494b7e1d. 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/GBMYF1300033.
Retarded Fren - Thom Yorke & Jonny Greeenwood Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80c682350ebaff67620addaf7b3ee9ee2f1b619189c9f6a0bca42e044467e245. 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/GBMYF1300067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98745cbd4f1443e149701a3afa7e4869c37d598fe5cb56878088c1af997ddb05. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBMYF1300027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf45ee618b384c09933028734e2fa676de4c85f39c056a4c4bdbf2a32038b235. 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/GBMYF1300034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc64d1609a13f2ac292c2434aa3800b030b6eb853e5d2e3b06c86864c95ebe526. 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/GBMYF2200132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67ff5726fb740a0a3b06a28491251cc4f9ed6829488cc5c9c2371dc02894a20b. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/GBMYF2200125.