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 0xcc6c3a62f805a4d176f33949d37a1c173d7c253a5e0a96bdf3a9e77a68a68099. 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/c3bc096a-b3ae-4c22-b2da-dfc1abdad744.json and https://artists.proofprofile.net/proofs/artist/c3bc096a-b3ae-4c22-b2da-dfc1abdad744.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 0x17f93de2e60daf41a1f3196f3e755a4fe379a6ba12ba813e0b3c3d393e8b5bc4. 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/BR9Z22400114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x738af495f607efcd4b210f2900e81fd276d50b30210d188901626742951d7a0f. 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/QZDA52437553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60b2d785f7ffb598f2c8ee06e3b98e5dede24c82be451dd3783045648bb12f6f. 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/BR9Z22400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60d5a44248aa2d8e7ee0f1dce79579cbd6bac29df4f2783d927fabaf07c9fa5e. 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/QZWFQ2344268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30d821aaf4b7341120c69491b49b06679e09b1c670de7b02aad85f018434e1aa. 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/QZWFG2354346.
Quando Apaga a Luz e Toma (Dj Ryder Remix)
Quando Apaga a Luz e Toma - Dj Ryder Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6cf48393b406b28ea6d895e4b274252043ab4f1be57947e529fe93a9f03e9d0. 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/QZWFG2351775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8327b7c93543e93eab6a4f1a832ea8076aeaf76d8d355065ab7f2e7c4488a3d0. Chain 2 (Bitcoin): anchored in block 960288 (2026-07-30T17:41:38Z), 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/QZTBC2358806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadd2fcf2af0346f4eb6371ea82c8f036de5d89a5f051aa728c264ac4ad318bf9. 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/QZTBA2363660.
Dentro Do Gol (DJ Pava & DJ RYDER Remix)
Dentro Do Gol - DJ Pava & DJ RYDER Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x569c32812e70d7147e1761b38d3c47c644848c7a5fd6972e0b0da669602ca623. 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/QZNWQ2386051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ed401b08a8d9d8eab03c9ac977998a6e8f0e5e4751fa028f215fccabfcc08a2. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/QZHNA2381194.
SEM ALI4NÇA NO DED0 (T4TUAGEM DA AR4NHA RMX)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7db87d5cbf2f02bb9c4179bd31efa5633119587b25d132cabe226a562d51cfc2. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/USANG2285024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x991793c58f779bbe762e24bbf4b76eaf667c812cc563f4d1dfb1ba3dceec1127. 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/QZHN32333356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eb9d41c48d784904634bf7c647f298ba6816901212791e1ded09e1eb8378824. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/QZTAY2256707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4238656258d297ca6e0d1657a837ec5b11abad6441d85d3ed65f2618ae8e487. Chain 2 (Bitcoin): anchored in block 960259 (2026-07-30T12:51:24Z), 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/QZES72214431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bcdc645478a9e669e46735108b90e5056a5e5742f6daf049afe0de3a888c964. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/QM3DF2164383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa387d3e6b3f3b1ac7003846256dcea9a14c8a7b3aba6d1c3be131bd087f14aa9. Chain 2 (Bitcoin): anchored in block 960193 (2026-07-30T02:05:19Z), 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/QM3DF2141737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25c9f354c37329e91b4f6445b8cb290cec4651d220664f013f7f6f1c0e22029d. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/QM3DF2138379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60b2d785f7ffb598f2c8ee06e3b98e5dede24c82be451dd3783045648bb12f6f. 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/BR9Z22400001.