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 0xa1a0ef83a7900dd84fea622c2010559a08d247cadd4da58a7ea2e4608661a955. 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/5807da79-5194-4e4d-b811-4e5c022a37fa.json and https://artists.proofprofile.net/proofs/artist/5807da79-5194-4e4d-b811-4e5c022a37fa.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 0xbe4bacf086914feb364def9e119117d42e7b9a355c28ab8b97fac2d02aa841eb. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZFZ22019601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff3705af729e9621661da17a2f18c44440bc2125f14b5e6a16578e1e508ec939. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/QZFZ22053396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae08a6cb3bb20f5fb2b15ea85665a25401046841628f996ac3547411aefe7efc. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/QZFZ32068487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11d46b9dbdd03ae72e204e80ffa8586a9c5b3b5c7ba5aefa3fd2afb50b285e89. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/QZFZ32094502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9363bce8c4bd4215a8dd69e9d09122d4fd5d075ee82ef19b38ac1b21f3a25cb2. 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/QZFZ32094503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf528b61a59d817f68cd7708e32c7f3213d0f2263bfbf170b76cb2ea759eebbeb. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/TCAFQ2125128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbe1f393a8c743f369f694ec009967c9f87b835c1aed53698334c0e6980b2ff7. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/TCAFQ2125224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec64bea643febb8b2c5d88bd9f761e8dab78690e4763a407950926502ff9fe7a. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/GX5MX2287242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e79239a5f85e3dec8156dbf5593526c6be45a4eaf91896cfeea31ea7d620815. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/GX89G2221291.
People You Know (we used to be close but people can go) - lofi
it's beginning to look a lot like christmas - lofi
Empire State Of Mind (Part Ii) Broken Down (Lo-fi)
Chemtrails Over The Country Club (Lo-fi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2bb1dfeae14a804429ab487ff1043be9f3d3c12c5b051cc3ce8b3f85a6b4bbe. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/GX4R52142355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3520dcfe55dd4f082bc3c22d71e6b47c97d3ec76ec0b73e26a380ed6bb6c14f. 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/GX38U2182030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07f224191092373897c0398b7aeac63405b451efcf4117113bdb86aa1c266429. 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/GX38U2157305.