Terraplana (stylized in lowercase) is a Brazilian shoegaze band formed in 2017 in Curitiba, Paraná. It consists of Stephani Heuczuk (bass, vocals), Vinícius Lourenço (guitars, vocals), Cassiano Kruche
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 0x2b6b635d2521e3c69c6c96eab654fbd78f642dfaac0f36bc6c89f3c25385e0a1. 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/578c5a34-30da-4f02-b49b-6e66df0796ee.json and https://artists.proofprofile.net/proofs/artist/578c5a34-30da-4f02-b49b-6e66df0796ee.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 0x036a0ecfb916acbceef44da773e004d5cefe494b070de20b898b125f9d4e5335. 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/BCBL92201401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4532f98cf7d8074bc366bd3a66680f02cf9a75bb2f1a8264fb257d3282a8eea9. 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/BCBL92201402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eb91c7c61c5e91e973be8834eca5f4e8d280a5340a0494ddc1f8de9fce5523b. 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/BCBL92201403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ed6972d90450b6206f0d4c65d8cde4edd28f13d5b8202caf85a3391a06c20d5. 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/BCBL92201404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa848ea44cb1411572a18f201c553e132fac75a792546791620672da67c95ba8a. 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/BCBL92201405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa5c2072f4b6d7998fa2e0dc47ebc1489caba2b4d58b433d0725c601f8f62690. 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/BCBL92201406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ff201df9e7c2946b23d226201421c52829d783273a9abcca2395083354b10cf. 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/BCBL92201407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d82a63f7326d55a7a675ad90a28803e63165605a9a44d3a8aa12e41bbeb2ed0. 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/BCBL92201408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34e1ecd70c426fa477f9e6e6258e6530c741bb79620c024f2d08de13db75001a. 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/BCBL92201409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffc409fda9726ce7a938c63adf7ec7dc8509ac93524666f2c4f7c8e00007c76d. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BCBL92300701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d4d791a87351dde11b3ee6f6944f4b746ef6b4aa608f841c46381fc03853bbe. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BCBL92300702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4596b3bbb3864d51e45c0a4c1d1dea6178c709e8fcd2d6a6a1d14225c948be44. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BCBL92300703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ddf07e91e074a325f818666eced24c1aac49fbd7e3b4580801f6a38c39eb054. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BCBL92300704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a57a8f4f60e63277c271729bed4f047c867c513f6433e424a0959f05ec3505a. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/BCBL92300705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eb91c7c61c5e91e973be8834eca5f4e8d280a5340a0494ddc1f8de9fce5523b. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BCBL92201403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4532f98cf7d8074bc366bd3a66680f02cf9a75bb2f1a8264fb257d3282a8eea9. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BCBL92201402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bbecc881093bf7ee30ac64c0aafa332810107a578a3c7091a32fcb1c742ce6a. 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/QZK6K2141641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21d3f0b7d9b33919c930e79618261f3c7f14d6c3bc1995e2fb78a65ba6569e0f. 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/BXVFX1700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02e4ad1b21ead6a0f5ccbd6dfdfe71e805f57118683334b686199e709085fcf6. 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/BXVFX1700002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa39247bd993aec5d6ee4a0b55545e54335f9d5ad3dd567c9f9bd4781d7ac2b54. 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/BXVFX1700003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8373908c5032a088947bc5f40415ac4e554ab51a3235808e70013d3bee238ed0. 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/BXVFX1700004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce729057f159b3d1447648b500f58b953aed672881cf38b3475e3731bdaa41c1. 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/BXVFX1700005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x489a0216995e2f10107e33cb7cc1d7f0c1632146ff347c463feaa837f9506513. 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/BXVFX1700006.