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 0x8b390924de24cb1615d4b3d66454fc57a1753278857787b0c4ea115c59423ea8. 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/5202520c-a967-488c-94cd-93bdb34ae05b.json and https://artists.proofprofile.net/proofs/artist/5202520c-a967-488c-94cd-93bdb34ae05b.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 0xa0cf360098ccd7e075b31dca89878be5410ed3d954a406c21e6f8d58db461d50. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T23:43:42Z), 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/BXG6R2100791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c205cb260fd8892752d7ea1a565d375337b06a26cabc08cbcd1c509575c8c2d. 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/BR90B1901163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa74684de58b2713b3f6aceff7832c16476a2f728058a7aaec98ff3cf9ca62566. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/QZEQU2034397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b956361fba44a27c6b169c6d6a002d448650feddfdc8fe22b24a86c84cd7e50. 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/QZEQU2034401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x955f9ff3063eadbe07219d488495a66bd08c9ea6049b762ed1b2bfbb3cdcd2d7. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:34:01Z), 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/QZEQU2113286.
Mega dos Envolvidos Ak-47 É o Porte do Homem
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd093fbeaa1dae41c82f05f0c2eef459bb251fb913388af34b365eac483cb7ad6. Chain 2 (Bitcoin): anchored in block 958889 (2026-07-20T16:07:04Z), 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/BCWV12100010.
Faz a Xereca Subir e Descer vs Toma Vapo Vapo
Nois So da Presente Depois Que a Gente Come
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1717522e702bca3a935f0431d22c583ef3da4d7338a4508042564b6b2b754dfd. 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/BC3PG2203194.
Faz a Xereca Subir e Descer Vs Toma Vapo Vapo
Toma de Frente Toma de Quatro (Ai Caralho Bota Sem Dó)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67300b8112df8b5aaa3c06f2ae324f9874b5a28a2781fca3324f0396256ce53b. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZNJY2318647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18e1894a17e269ecdf24fc19247a9317cd09e8b4f9e54e70259e5414b35b65a7. 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/BCGRP2400111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26dfb64ff0b484d23bf0d51115b35a0eba3a138a8e8c37d5b51c9d3c3f036776. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:29:45Z), 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/BCM9B2401287.
Só Vai Ganhar Presente Depois Que o Bonde Come
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35ebf908952fc03fdc05977c18e78bd2376aa126e54e9411850cca2b02ddda98. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/BCGLK2400043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe894aeec90a2007ebc7648d1133fd9f5687d101fc3dbf1186b13c769f5c13188. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/US7VG2573990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86eab67b9757ab3b192c872a936a740e9deca6b4cb12b8ee8e7b87397ab23c2e. 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/BCP452500043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fa15b9e44dcd76ae3bb7f56c114d766d4404469e234877bb9303deb7016d3c8. 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/BX4IU2336072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x475cefffc905c7a0ea6d720db1875c72138a4232c6afd7c3d1f9f4d2215a1ec9. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BXKG22200456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c3e8e9ff8aa7353e947a924ccec3784a11935380a5ed33726b75490f54aa254. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/BC22C2300030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d791b5720ad11e1e514642c19aaacc520329e0b3b5c799ba2a9f207f722b00c. 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/BK2242400338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec5b85527fff97bd46bf2d77a2afa0e90739700dbcaa1bf718e6509bd5d4bceb. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BCIH82201666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb87a583c3918dbf2a8aae3d072effa90376ec1ee8e56f1eeb02bf826576266af. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BKNU22400192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x613eaebda4f0330413f9498fb99a490fc541d1a57564e927a63f58e1030ee4dc. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/QZNJX2348489.
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 0xb6f43c1c525e75c8bacb4f9c69acd250e8e8fd23f1bb17a843ff34b049c2315a. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/BRYPB2400022.