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 0x82ed851d8d3eebc68b49bc0cec2355c5fc71375d2d1b50c99145dd03ff84b29f. Chain 2 (Bitcoin): anchored in block 953877 (2026-06-16T02:39:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/08e08110-2422-4887-8e88-9b1d16dede92.json and https://artists.proofprofile.net/proofs/artist/08e08110-2422-4887-8e88-9b1d16dede92.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
vamos fazer uma fogueira e apreciar o sol nascer
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 0x6f71f2452e488f9786ea30d0cb92e46907c9f1a61c03ff2d5daaded013181445. 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/QZFZ42439963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2e76562a5ededc9464bf7861da7f0d0d4d09289673c8fead69dd160d89f6469. 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/QZFZ42439961.
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 0x378c0ea07a7c9466fb8bd3e491f346418b27ea307559cc46531664aab933c801. 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/QZFZ42439964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddfcc86c451b9ed40942ab2f3a28c41f0d43650f61271312853a349c8730428d. 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/QZGLS2087820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x345753bfba02d609c9fe8a82f31860c910f84582eb928d0fb2f911d33930d058. 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/QZWDE2475714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6a412060555585d13ba6d5cdc6f60b2b3ba64f87155ed45fba7727c161d8571. 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/QZWDE2475718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa698f09197dcf5b9257224cb5f514a737600f12a2800e5c3d35c3f8c73f2e47b. 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/QZWDE2475719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21f3d580ff7e25aad9b4e17535ec1b22ca8c3bbaf2d0ee9a418b399a43f2efe8. 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/QZWDE2475729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd059903b4f7587d09cb3e8e38998943000941b16588e902ea08788e7dab91343. 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/QZWDE2475788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77147d6c7eab290a420b5c45cf9e42037778aae724f77e40f3d753af8ad40ead. 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/BKGT52400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1f8da21e8c970601e26c55810fcae8473f9abe46b3ab4693df2675612d99b4b. 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/BKGT52500006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56f01d4d52aeeeb2028bef8e0d8c5809e9ef754c349eae27f0d78b2a70fb70f8. 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/BKGT52500007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe23e837473d8b91bab25b1b9a05563cfb5e952ec8e88a5b774848c409b99645c. 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/BKGT52500008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e0e002eb38ea581d9485ec137d86ca85289fa8d694c629f08601f60089d0458. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/BKGT52500009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ba6b7d358b4a81bb7b55426e83d32c2e1448394a19d641005a6eec64dba0844. 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/RUAGT2370921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7516cd9219557cd0bc9899e07377434d664bf945d8db38bdde117bbd1a6545cb. 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/RUAGT2370924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3acdbe790977028601c7ee04134c2b991a2809a1f6308ad00db20d47410e59ff. 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/RUAGT2370926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71e15f4ef4c3665f5f635de1b7d308e22d37aae0b80838a98757697e3b4fe494. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/RUAGT2370923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c931cbe7eb06261e58416bd61a54c5da905b8a557f63953e2770ba6bce78777. 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/QZDA82265213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30c0126ca48570dcdbcee44a0cd01f5a0e1b63319f0f2734d4e4f65488fc69c0. 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/QZDA82265218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3674939cde509c4cb1382372e47cbbb799e33b3f6d17d7c142c1f1be3bd85d46. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/QZDA82265223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91b8bb5aeac42b569ce43bfec08532130a8c44ec40ded9af16f2e2739d729fcc. 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/QZFYZ2436258.