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 0x2c719c4cf104691e2e6b419d352ddf0a9ff7338a7ef820acd58915d721f32e9c. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8b271083-cfd2-4efc-94b4-c1f3bab6904a.json and https://artists.proofprofile.net/proofs/artist/8b271083-cfd2-4efc-94b4-c1f3bab6904a.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 0x259ed47ef9a5250d3eb95c6340565d4a12c358efe0896b0ffe1e4819d25a98e5. 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/BK16P2400208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3c04925814da51269833feab8447787d80039b7e6eae0a3ef08885656aaf3ae. 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/BK16P2400209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x391d1c274cd3ef6f7ebb5140193225c00cf872657c30d879210c24a3f70e9283. 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/BK16P2400210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c76d391dabc7885f29c41372bf5522ef04e19b375d35cce95de6ba8899a08ff. 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/BK16P2400214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03e8be73d9326d1832fd21345fab144be53d01e04c7cec387a36684de20ffaff. 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/BCB4F2500198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fb5e3b479bbe9f3793aad9158dc368dd2b61a31bb7ab2540ec0aaeecdaac979. 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/BCB4F2500197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe45ca1104c9b0db45354e4fe3063b7877699a1f84f29ecb3648a0957c8246048. 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/BKXEI2500479.
Glamurosa (feat. Dj Vitinho Ms & DJAY VMC)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9db98968177d7c6a21f4cab19ebc0b34cad488692917dca16024b0662787b362. 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/BX7272400133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4330439f91d91f5800f7b4a457f4c44ee365e74f2ad983deb70356190e1692b2. 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/QZW9M2405181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a1fa27de23a20a2819e9ea2355cbb3c5c3285df0ac664f5dd7a71a0ae2a60d2. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/ESA112559838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x741e46cb563e6bd190afb5447de57d7a5345692a976820b6882e4afc6facb972. 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/BCB4F2500172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c1b36e4f5ac39d7ce0ce2b3c6e56f2ceb3001d728487b56c02e7ffe852be472. 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/BCB4F2500158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e7919a5064871a2c85adfdf1d1bf7f33728775a4aef688d515f9eae6fb54710. 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/BCB4F2400562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16ff83d0cc1e985aef02fea0f87656cdaa25678ab6ae266697173eaebf1c334c. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/BX7272400122.
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
Não Olha pro Lado (feat. Dj Tchouzen & DJAY VMC)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e9950b15787e1504265d364a390b2027733e6658f07f8b5b7595995f426c417. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/BX7272400129.