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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 0xb87029832c25407ff33d5c6b21b13795dfa1a16af401ce4c5906f2bf3579090a. 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/d321ab95-2974-40bc-98c4-fdf2ce89055a.json and https://artists.proofprofile.net/proofs/artist/d321ab95-2974-40bc-98c4-fdf2ce89055a.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 0x91fb2245925c7066fd35c3d5de0d53a076fc172f70568294cf9b52c5d55d191d. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/BCIOI2300016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30cd617746c39794b81aafb38dab5a2fb9b2279a3629486e186ce3f087cb919a. 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/BKVYY2400019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88df8fee7df9937980ce79d838cdac7039f556c815135b805491b3a1dd1b2499. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/BKVYY2400021.
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 0x4a637ba256f6ad75381d038ef264ee26483c88a079623ee725af5b46642fe77c. 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/BKVYY2400151.
TELL EM BRAZILLIAN X EU SENTO E ME ACABO
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d2b2fe864e42d717abf2eaa1c9402eecd67a34d27e64896b7bcf2a72900850e. 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/BKVYY2400618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcce9f95983ce8924c4e8ebc8e63d5abc393ca21142654dd712c657719fdbad0e. 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/BKVYY2400145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d63917ac5bf73d5fcc37452c62a8e47e63d24381c3133ae53494c258307d887. 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/BKVYY2401010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb97b3926b1c6d83e64e14f51afd907ad33684125f53ae7cc44f8efe240281160. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T11:06:03Z), 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/BKVYY2401016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ab6f2d17d5a88d2c51a81b491d78601a298e28565e8f2d18d2fed980a47ddec. 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/BKVYY2401018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa795294c53ffc808d6be570080620bbed2e54c0c3517806e7b42639e9f53485d. 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/BKVYY2400754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeadfe846a96335569dacfb2d720cc7a05087196e7ca6e8fe8fe68583766bfe06. 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/BCZ582400061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe3b20ccf92f78ca87364839e15b6b5dc0a6cadd5c0317e6a028b5fa131c20ba. 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/QZW9L2430667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2260c98494e616b53f2f56f0b32892b100f24e71701f9a8a8cf9323885c402e4. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/BCZ582400097.
Nao Precisa Negar (Versao Bh) - Super Slowed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ec56d41de7b8a6eae232027257172ecd9ffd3cc0c712253f619f8b5cb6355c7. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/BCZ582400098.