Forro in the Dark is a New York-based collective of Brazilian expatriates that formed in 2002. The group combines the musical style of forró (pronounced "faw-HAW"), "the percussion-heavy, rhythmic dan
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 0xd13473e79edbcd81231e5ccea17f1b7645844e8b8a0bfc5db121a713bf91162e. 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/48e01341-1bd8-4152-b51d-55b52ba4f2d9.json and https://artists.proofprofile.net/proofs/artist/48e01341-1bd8-4152-b51d-55b52ba4f2d9.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 0xfdedbcb796106011a8e654cf228f8cff28f7f9583d14efb0646ddfb8d3b886a9. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/ITC490500030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30d2773a420e6eba5c91dadf5dadbf086945c667da4bebd0dccf3fc9fbd423ef. 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/ITC490500031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe87c71898b4bf2e4aef1b07df29ba9f3a7d52cb640d9316687476f0bff7bbb6c. 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/ITC490500034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f07c7a8ec0803d6c8e6b1adfd278105fd26bb534419e03d01cf7dfec721f1c0. 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/ITC490500037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24be24908555bcf59fc15fe977ab2bced9dc03565109817bacb56ab035f5d3db. 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/ITC490500040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a223889b20ae424385c5ad4baf1b1c5c019f372d00f9c9a4dfcd91ee7df4c92. 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/USBDW0600026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8577341b942f7d6c66ba2e0355f340b83139315f7a7a768e42fc1bd5cdea5d0f. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/USBDW0600022.
Wandering Swallow featuring Bebel Gilberto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4b1283d1f98bcd85b3eda1658bdd502e9763b0466791d0ff426360d79f8b648. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), 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/USBDW0600027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfec56f9f7b7fe2a5eb44856b20f9729dd565a7a243fd9c4cd856be24531887e2. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T10:57:35Z), 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/USBDW0600024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8577341b942f7d6c66ba2e0355f340b83139315f7a7a768e42fc1bd5cdea5d0f. 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/USBDW0600022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0ac6d909f6a4c39a4aac2977a2f2aeb5832f4cd04ea06619429fa146c50db6e. 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/USBDW1200020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabf7779c8b211a7c15c49ef0268817a5a31cddb10cb82219aeeb834214fc061b. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/QZH5R2000137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf78fb3b3c5e84c45a2cd8bb96c2a6436e2ba16a13646aa0359244839d74e0dbc. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/FR5R00901807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9cc24d95db490fa12437ae5031bc721053974c86bbf231679efd37a91a3ce46. 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/USBDW0900005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0685660ffd16d97cb83393969f26a84fc60f53430f069af0b5fb5cbd548d3492. 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/USBDW0600025.