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 0xadd0e69621c5649cd60c082bbf941ac906f1645022f33ba270706b30ca96e0db. 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/f5c5bbcd-4aa6-4264-9ad4-68f79dcbfe62.json and https://artists.proofprofile.net/proofs/artist/f5c5bbcd-4aa6-4264-9ad4-68f79dcbfe62.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 0x55b8a29be7be9b9e6b9b8c8e9e366d85864d9fa9235d9f5d175e30507e328db4. 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/QZWFG2488018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0138b681b9bbe798f8e3a4191cb6727354f11b088b7e1f1df52416bdce93843b. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/QZWFL2416168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f18273e2b4eb6b9aaedc98d90bfa7b5811bd3b2756b57f61d7382a337b198b5. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZWFL2416169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfad2198096c7f2abb3c4eef46ec28607b087486a046cf6323aa858a8df11d9f8. Chain 2 (Bitcoin): anchored in block 957695 (2026-07-12T11:16:12Z), 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/QZWFS2409985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb78e472825cd1cacfe3089a32a363cbb18bc2c2be71f353a9794f1dc73270532. 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/NL4CP2431112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60f4aaf733561b9638753296fc3272397c5d07ebcc23a10dba47634976273529. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/NL4CP2431114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c8e438e3ae099d9cca710d3040fb3e9c70984a27b75ee6be12865978b0ac139. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/NL4CP2431115.
MAMMA MIA FUNK (Slowed) [Brazilian chipfunk]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x249dd29f7f7585bd631c4c3f4c1b73b40b9d721bae3204176333789a898f66c2. 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/QZWFX2499636.
MAMMA MIA FUNK (BRAZILIAN CHIPFUNK) [Sped up]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ba0fbdf312dc479506c394dddcb25e76b9d8259b533738700db03e45487cb7c. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T19:26:13Z), 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/QZWFX2487817.
Awakening (SPED UP) [BRAZILIAN CHIPFUNK]
Praecipitium [BRAZILIAN CHIPFUNK] (SLOWED)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0033e434873e69d1dcb54576ccea72cc80f6d1a285ad4b266bc5bbc7bafaafdb. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QMDA72458582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ab746721905663f6dccd2ba97158a569618ff8138d1b2cfc4efce1d4506bee8. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/QZZ7Q2443873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7f49c4b03fd74bc813dcdb965c4d52954f7e393def643003e581e5fe4ee8eb8. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/QZZ7S2495641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56a7c6d829a18794db7837abee13c85dbea599de4abe079f441d5d6d316b5781. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/QZZ7U2476254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca671cdd1e7ba795c9652e343dd5c8498c904b5695b8e2e8541d946a6c4dcc12. 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/QZFYZ2597777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x480db481ff42a87545952c1f933c04e25adc208759c619b879cc5c094951f6ef. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/QZFZ42528757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x419c62a8b19b51e2b888d27e4d94700983a2eff1f4920dfdfa294be65f8324a3. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/QZDA72576302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa05886e6c5717b93a7ee1ed32efe09a1fbd612e0568688061a07b27959420ee2. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZDA72576303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08049170b6a1752ac34af63e69f044a2bbf96a45675ed88b3ebf42ccfe642ab6. 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/QZDA72576306.
HOW ARE YOU DOING THESE DAYS (BRAZILIAN FUNK)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7d2e19222af532123e31de45d2d91c28d50e718305cda289d4cab825c467f34. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/QZHN72509011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60aea6907072bf321c0dca81de1d90f5d05d35b84061cd0395a9e37505bf4c8e. 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/QZK6Q2523712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e320954f0d46f81434621f123e097cd6229268b7a48cf4712e697dd20bf4059. 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/QZK6M2595165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1effc599e3b9469cfd27442df16668d9d383cdb48bab77c56556c57619627986. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T02:31:22Z), 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/QZK6K2528731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41b08d3e3bd73cc4d1c018b0ec3ba1b5a4b0c393718128bba6e82073c09cc64b. 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/QZMER2564399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8af27ac2ce97fa9ed11504b09fc64781d37c19fcb6c5c6c4ce4a25df818a945. 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/SE6XX2514225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2cf6405804214a6f24589be3f00d03eb9eb3372bd803567f4bbf945b955cd5d. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/SE6XX2574415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b3d06d9e914fc7789ee7b5836b338824c8cf05822c12c897058434d87558fb2. 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/SE6XW2516734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7862be8885ad12507d62f389e013b074257bda6bb2b091403bdb6d7777d38c9. 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/SE6XW2573802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x061a40105fac17e51a06af2b703da632ff6bd482b8c9f951c8b6798d91f2b745. Chain 2 (Bitcoin): anchored in block 958860 (2026-07-20T09:58:28Z), 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/SE6SA2544316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x629f80d92643d7c021c8e74e11798ebae738fe5cda21b05fc997f70f03535478. Chain 2 (Bitcoin): anchored in block 958197 (2026-07-15T20:40:29Z), 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/SE6SA2544514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f9df3fac051f91e91c7b0a4aa7d6b7c9f3a40e72448e2e014be3e1ba61d2223. 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/SE6I32508956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb9af05b172c0e19176ff50b20343e55879a9ef9904490f84889a52d7bbba602. 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/SE6I32508957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bb1fa51fd6a13311fb6079d64ea9e3ba25256b2cc8157bf803008a7915425fb. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/SE6I32530010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6559d1c29635a56944b238ac1515186377e8944b37d6da97ef32271aba92eb18. Chain 2 (Bitcoin): anchored in block 958785 (2026-07-19T21:40:06Z), 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/SE6I32530012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0eb3d9a43cfef4f92229e11360ff6b8395f00f1191688b86a4e31537d0ba028e. 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/SE6XX2550348.