Baião may refer to: Baião (music) Baião, Portugal, a municipality in northern Portugal Baião, Pará, Brazil Baião de dois, Brazilian dish made of rice and beans.
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 0x1fbc3c7a33b9c7a8137bd6b1c9516de656b9664299a2787ce9bc5e7519881721. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/00a2bd48-f10b-4ee8-95db-9b9e75805bee.json and https://artists.proofprofile.net/proofs/artist/00a2bd48-f10b-4ee8-95db-9b9e75805bee.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 0x38fff34a0b78237e88aeae9faa0abde1ea816a4813a745a8254effcf30ff37a1. Chain 2 (Bitcoin): anchored in block 959088 (2026-07-22T02:14:33Z), 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/ES71G2320039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x501bf58b95d3cffec1c1f163c06f46f5e0fed869e2192b82b84ac10fa7e55d45. 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/QZGLM2463832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf18529982fff48e5b17f1714a75286134a390eeec2ac5bf363f7dbe8a465a6a8. 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/QZW9K2418965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7ee20b121952b21f77bcd13292ccb0fca8032194086587419e3c5913027730b. 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/QZW9K2418966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x668aa9d9b3f5a8f08e3f3b64b91902b6e79f640d38cc3cbaaae73a8932f7f0ed. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/QZW9K2418967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24783e615d20b6e11a974d10bba318d6cec9604bc7981f4bafe84733af4a6a6b. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/QZW9K2418968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x051cc4bd164025016a382652fe745020cb6f8dbdc244e24228ef73e1c9ca2238. 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/QZW9K2418969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafeb20a12497f2b8de5997aeae9c839d7a472b3cab5a1e8b3a3f28827f4418cb. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/QZW9K2418970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe512dd7d549ad7bcb707b522fbfebf810f5b3d85b111d49fe40732acae783771. 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/QZW9K2418971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dffc60363b775a23462a420a52296409fa3546cc757999a4324ae076f045937. 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/QZW9K2418972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e68969479f34ecfdbc9ab5959b67609db57fe02de93a3d4997c90b8f9a00eaa. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/QZW9K2418973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd19897fd670e4c5fd63a4c2dc0d4b1889435930a58a47097896fd842d7d3e85b. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/QZW9K2418974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d0a774caf382986d6df06f5d8e0959aa04458f8b930b7bf5906f701d93df956. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/QZW9K2418975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19fa168ca0b1a771bade5d98d7aa4c69402a0c16d4ea9ca306c248061a5c4de3. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/US7VG2550973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf50aa67e557777b1eb890e4381b9fb1935ea0ca36314b3e32729bcc0b94c85e1. Chain 2 (Bitcoin): anchored in block 959052 (2026-07-21T19:50:27Z), 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/QZGLM2551321.