Infinite Mass is a Swedish hip-hop group. Formed in 1991, they have since released four albums and eight singles. Biography The group formed in 1991. In 1992 they won the Swedish Championship of Rap
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 0x8f63d8f5e2ff238cd8057b9b28256f5537c08a5d06418a7112f49102d4f37da3. 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/0124f610-d63d-4908-ac24-28449d7e5e77.json and https://artists.proofprofile.net/proofs/artist/0124f610-d63d-4908-ac24-28449d7e5e77.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 0x4a28de601d3f17fa8d6982c9059b42421bace4c66b46b5683b4785cb3053c76a. 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/USWR31000173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32d679d4eaea0d5d211103f100b24e3b100c4eeeeb8160d8e07c29f57d13fcfe. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/USWR30911977.
Caught up in da Game (feat. Lalomie Washburn)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89960aff118c7badc7f2eee37e3755d43f03908b70b8aee6489e31e392b3b496. 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/USWR30911978.
Alwayz Somethang (feat. Polarbear, Shorty, Khaalis & Rodg)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x436caa6cc5b65248711f52c755309fd364f2c9780fa2b0539772c13aef5bda42. 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/USWR30911979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4c042aea61629099895a2cdbb5e8f898cfa7bda270d1e967850230a28941b9a. 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/USWR30911981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1a9e94d08931be50f75d1a9af536c649a441755c8aa68bdde0eb6461c43731b. 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/USWR30911982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd39124cd93c81bd4d0ca27fa384483ceed23d54c46fee71cc777e8d64e654062. 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/USWR30911983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e36775e3807cd0298089faacb8184d24ff13f27c712e1bacad3e562c2cbb335. 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/USWR30911986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfdfeedb4688fa74f91797ee8cf9a83ae3673147b9d7e0d542fbdabe20b2cea4. 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/USWR30911989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a8915485f6412add604d948a347dbe4fe8fad33a6e8db79cd2442293987dd8b. 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/USWR30911990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38d1b85be5e62a0347c98b2812c874d686e0bf03655a399d51abf8814c705640. 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/USWR30911991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3fc6b6bff3a47871396d71b58ce65658741c28a083dc3ccb048b782977bfbc9. 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/USWR30911995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4d0925d297cb88f2d27a6bdf1e0fc99c3fda598ea8334d6426894c1a9ebf69b. 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/USWR30911996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9f3eaa3647baf7280a35b4b0c2c972d3a9249b444411f96c886f0dba06d43b9. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/SEBFO0114050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd93ccb3bc8896aa956842c4100f405e1b2635bd4ade51e1558fef8fc11dc33b7. Chain 2 (Bitcoin): anchored in block 958682 (2026-07-19T06:17:12Z), 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/SEBFO0114060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5ce4e4d0584268afff0d4c41431960fbfb3908289ee49cebbb4283f03da6650. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/SEBFO0114150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaef23f020538585ca13058eb2ce2e5fabdbc5be888f404ea3dda222c0113a18. 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/SE7AK2400101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b658916268bbc2e277fcd9d85d1c9335797815f80d2dcf312e144e6384d09a0. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/US38Y2419331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb552b6d0a8e959c27ffe044bb0c5732104e4f60aea92ee13b111c0625ff02180. Chain 2 (Bitcoin): anchored in block 960177 (2026-07-30T00:21:01Z), 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/SELAA0202215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe3ae1efcce24515965a7e71fbd115941929058e659a50faa118e8d2cec2e9fb. 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/SEPQA0405080.