Dealema is a long-running Portuguese hip-hop group based in Porto. Along with Mind Da Gap, they are one of the oldest hip-hop bands in Portugal and had major influence over the genre's development acr
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec688d19a9f020f8f22ee0dd94113989d408a3600c9cfab48897d9e678252a59. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6a8785b4-5f17-4a2d-b7fe-30f4f3d2b5fa.json and https://artists.proofprofile.net/proofs/artist/6a8785b4-5f17-4a2d-b7fe-30f4f3d2b5fa.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa30ec0dc69011e467db4272bdf1cb87399929fe75316c2bde825301e92eecf43. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:23:35Z), 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/PTNS10300035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c960bb17b577b574a6d0bd4d14076bb9475151d0aa19aa7972a9a164ac2fe69. 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/PTNS10300022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea3755e51e783abefd9baef648ac71fd32ed2f83ea69b13e80a17b7778937950. 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/PTNS10300025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86e65eb457d5f439eaf7955e51d2d27d5967228bf814c1b869e74dcbb590e42a. Chain 2 (Bitcoin): anchored in block 958378 (2026-07-17T06:45:39Z), 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/PTNS10300026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdde63a43fc9ba6f52b8a5351633295d15bf7189f8fda7b0625947fa335fc8645. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/PTNS10300028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6522c9baca132a14d328c8c32a105f75d199a54a8a058e40f3fdab7c701e6366. 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/PTBZ10800003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6843aa7a554a033ea852eb4ed08575f8091ab75415bad75a5bc4522bc47dc74f. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-17T00:28:28Z), 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/PTBZ10800012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3d02d0209acc2824f6e21469a3741f0573447a512c9de73c0b5a2d21e857737. 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/PTBZ10800014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0459fdbe906c01f6acb9703ba95b78be342bb8498f4e6a298e19d7bd69604668. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/QMFME1973657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7adc8c3570fc66c386ad98f48c63c0568f4e3cdb4a4b420c78a3596bed2fd6c9. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T23:43:27Z), 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/QMFME1973659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9237d0af099b4eca32e6915d1a682fbe37d2f02a5960af95e1e3c6fbea4b410. 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/QMFME1973661.
Portugal Surreal (Fado, Fátima e Futebol)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9f766fecff5787254be4963b955418d92a35081b52ea5646b60feba179923d3. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QMFME1973674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f6b62c8a6f57e07bb67f8546a0bd35e4bcb46388e85e166de439d5e4e4a129c. Chain 2 (Bitcoin): anchored in block 958878 (2026-07-20T15:05:53Z), 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/QMFME1973681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aef754b958aece563a40e3201edbddba6f51b5b7020cfa91b43bff3ed99e35a. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QMFME1973704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb17e83acc155923a54fbe733f35615a62ad559710081594b20c02befabbd6f3. Chain 2 (Bitcoin): anchored in block 958531 (2026-07-18T09:39:18Z), 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/QM4TX2085808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27bee1d61aa06abf331de1c2d90e0a5e296e27e3aa6e687381f3bf13bff92075. 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/QM4TX2085787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x231f9424103fe6b6d698bb29ed7564d6b9f4cbbe8aa68ab8be337a7f4ffbec2f. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QM4TX2085793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x254b30f9e4857d48eac56bfca930539f79e0d0b7bdb304fc18eef188b1a896eb. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T16:26:35Z), 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/QM4TX2085786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ded17db7870951cde5c5c905c8a90433129622015a1ff834dc7504efac9af3b. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/USA561079667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d71924e9ef007129543684cf1f1e5da47506fec4b52cc4c796437c8f1e73ad6. Chain 2 (Bitcoin): anchored in block 958325 (2026-07-16T23:49:03Z), 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/USA561079668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd40e68a220c14587fc231dfaf31a70b29dbd7542775c97b620042d64ff9dc9d5. 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/USA561079671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe1962afcd43fde8d019552553d131b45f52d65ae1b88f980dcc4285d1cb23d3. 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/USA561079673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b3138f09528a34a2f62d42896c34000f8623a9886aff527d46013b43938ef49. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QMFME1913285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x521550d961dbebcc7969e2e4e8be5c6e3a8c5d40b642390bf5cf5d6ec9bc9ea0. 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/QMFME1913283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00b4561a01339c474c27c191e49ce812246ed250174efc88cd5dc27a9a00555c. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T04:56:45Z), 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/QMFME1913286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb999acf5445b742f6236683fa765f7ef464b4b0bf1075c856296f813eb9511ee. 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/QMFME1913294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e79dfd9f4da101dd3045df0d59214c7e59dcb44fb3fa50ec3eeb3bbfe54c850. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QMFME1913299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54fa0b6bf20f7b6b37c784f82f8de9eaa7655115cfa10266d62268e30aecbe67. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:23:26Z), 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/QMFME1913304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf53fb4dbea2ef6ae00475d27d64dd38ca12a12b012c701d92cbdc1322069ec6d. 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/QMFME1913325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe93924a8c9303b95fd8224e352787b71e8e75e6d2912d9d94422defe238161bc. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BRCQE1900018.