The Mummies are an American garage punk band formed in San Bruno, California, in 1988. Exhibiting a defiantly raw and lo-fi sound, they dubbed "budget rock", the Mummies' rebellious attitude and disti
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 0x7ed32da8e11583a7db8d69024617475d8bb42f55bf6eab0800273c3f9e2aff18. 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/ff74bb43-31ca-4178-a2f7-eaf5b67e35cb.json and https://artists.proofprofile.net/proofs/artist/ff74bb43-31ca-4178-a2f7-eaf5b67e35cb.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 0x8744e06796c535a1fba6188dde527afc14582d4c8db317425313ac319d807562. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T03:35:44Z), 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/GX4R52348234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x554943c6dc2e2804c9aed632a87c6410fb330319ff56f01c7d9077579a64de07. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/GX4R52383104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a2a4cb585e325d72d42862075658850d96b7720ad5f2b77f43ae2c71228fac8. Chain 2 (Bitcoin): anchored in block 957717 (2026-07-12T14:54:03Z), 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/GX4R52321580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x471825ec818270169be877e0000946867eac50298c1b5c462755d8f08ca1a17c. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/GX4R52345789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3da726c90850f39947e779e7b2ffa84729e95236fc4aa0d27e2efb53fc29bc0. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/GX4R52335006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc35a8ebd88647b2a2c7f973f09708f1facb1b93aca69b9ec8bdf43feb6996802. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/GX4R52351206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30d093c25f407f2396430a0d4ca0890a202ee8302a099fb73fd62c7092823df2. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/GX4R52304484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x187f40faad035e315d806d232acb3001f9948665659d493f752baf07e384e47d. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T10:40:17Z), 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/GX4R52345715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ec93f88c4a949868528a8073d01943bf349222ed9bea59ab22a562a4abd9988. 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/GX4R52353884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc44ae4966209d9de2784e4153777b16ae0a90e0b41c23c9a9f43b2bcd21d13f7. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/GX4R52315761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e2d7257db7d6f601dd801aa5fe2bc9d4216c422be169aab0a524847a898128c. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/GX4R52322167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bfda25ed9270866fd1dc557fd46aca7f4018e8a27d07ac5d238e18c7d2e78fe. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/GX4R52336869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63f7d3a63b6b15612ca1aa34c677ad78584d8059cca8caeedde57609e0722a9e. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T03:56:18Z), 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/GX4R52368694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bbfb99f0e14505e186be7570073d090334f01403cff2a1bb8cb7a61d14c5e71. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/GX3HH2319406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa78cf4d3a46c83515915fd4acf0ffcf18c16726239def7cf81137f49bba1b03e. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:04:38Z), 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/GX3HH2377424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23d3c3a2514dc99b21d349ecaedd4400fec3ef310c7179d8d5f32e92a40dd22d. Chain 2 (Bitcoin): anchored in block 958708 (2026-07-19T09:08:25Z), 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/GX3HH2300971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbf3da911fa0bcf2f77b15c0579769631915fe2cf47ee5d1aff624ae685a5da1. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/GX8KD2304333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf021999f6cd13c277dde79e4b53d9ff36f07085b24415d3d5f91f3942baf9e64. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/GX4R52374069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a3208afdbaafbbc6cc7a75e119b6198c8ead2161cccec1b80dc49a1c1f639a6. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T03:46:47Z), 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/GX4R52370939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe80adabb8210fd88a2e03d7f0d6783d4b8e1c014cab34f40adc3f2a115242a62. 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/GX4R52378190.