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 0xb3fe391e236794a919ef58cc90540c8fce27ef46ca854cb1db852dec94ceeffb. 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/55a9e7a8-0949-4ea6-85c6-ea7b23b2378e.json and https://artists.proofprofile.net/proofs/artist/55a9e7a8-0949-4ea6-85c6-ea7b23b2378e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Lívia Cruz no Estúdio Showlivre (Ao Vivo)
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 0x55d76f377a1f48dec18e302781bf53c8dc785955376f97ac3ed9bf4a29b750f4. 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/BRC1S1800176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x552459ee09d07b6a145a6d127e33fc3a89da2232a7eb4ea8d8d3455976e1830b. 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/BRC1S1800197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf8c44916134f78dfa8becdcbecd84fd2414152113c09a1c79eee924cf910635. 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/BRC1S1800200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16131f24c00ec5c4467b92f9a19d0decaed4b0698bd784817cfebb06604dc2ad. 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/BRC1S1800194.
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 0x59cb26d9bb7d43dfb0690309d38ea87571e0e977ca86735986b519a2044bf0f3. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/BRC1S1800195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf937fae2bfe9c8d47838c08e5af14430539eb642968d92c4c18d9ce4d6f0f06. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/BRC1S1800196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7efff8eea441ce286fff5a63600f1f2aff19e184dc789300e192ca355b7476b6. Chain 2 (Bitcoin): anchored in block 960153 (2026-07-29T21:57:12Z), 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/BXHAC1800047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d1d39bb754fd01fcb7e4048d189f261a3b83019ba94aee5da64a548b2565b43. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/BRC1S1800198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc157fb6b191f0d9cdd50cd513dd9f70611f9f5b89264d83bc13894d8bcb2921b. 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/BRC1S1800199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde70348d34810b8fd049843cd1b0bd66aaf4e21d62caf48f4a3332fdd5ec0035. 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/BRC1S1700040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb19502505771d9bef914653ad62ec0148c36775384b86f94bb75df8a8cce8260. 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/BRC1S1300035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11b8fa55900e8d88984f1afe77875fb474ffee65379ec726793523cfa57dac29. 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/BRC1S1300039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ed2c02267ebfca1ea9c2e3b1e0801b8f53ba7ba0037ae4f17eea8ad81f0b34f. 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/BRC1S1300034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c92480bb70f591afd894b22e880a8461fb40b8af4332c52d9108f6ae7bd1846. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/BRC1S1300036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc34ff3770d97653dc6e7edf2b9c2b954224010afe1d26aa0c6f9ade634b0641. 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/BRC1S1300041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd55d8cb7e1ec7221ea3f7b86d548aa9dfda86fca65f472b7f76b4770a4b699d. 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/BRC1S1300042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dc97b0050d2e72f02fc3265c97ca265ee6396dce16395f55c2214e2b49e7d17. 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/BXIFI2300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85db7f1a2e1e0c2fdbe06107d3f22ad3b08b33111ddd9b78a6f0206b8a3017e6. 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/BC2422200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53b00d3bc26420099f8356d942eb0aa5a611b5f73c3cbd13c8a022482b17c8d0. 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/BXIFI2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5525a43c52971ede5fb2ac38c81c9108a8d65e8d8f1ec3aaa55e97d2002452e7. 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/BXIFI2100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96c1a3e5314e767ef2a9ff16cb5613a8404cf634811f03780b164046144896e3. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/BXIFI2100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd164d99ce343fa3d57ae3292846f1c536616214b3801214c0d10fec690769d81. 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/BRC1S1700004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e3cd0d855f64eb7cd3b7c3c4f193937fd78ce856e23d071c35612bd535dec81. 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/BRC1S1700034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c059fa2f1800b7b120e120022f87baff1592314e0d1e10e0290723b458e7610. 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/BRC1S1700007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e16b1da9305930d66dd51cf1d26b2a24f4e85479324aa85f36d94bc2d737b16. 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/BXR1L1600017.