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 0xadf91db6af98728c14b4ae634b1c6802d33448ca0ee3d4ff59e8c77ce034db52. 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/d70197f9-ec63-44c4-ac46-314a3f150fee.json and https://artists.proofprofile.net/proofs/artist/d70197f9-ec63-44c4-ac46-314a3f150fee.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 0x8b0fa51e5ecf4d18289336dabb9c7baa2a9eaeee714cc046b482b8ba7408cb1c. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZGLM1926633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b5382fe52ff68e869dfaf9b36e2590f3b93cd44326709bd91ef672cb93e5305. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/QZGLM1926637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec2288bcc8b1872abca3004029f9705dfaecafa9f7a98bfefb1da37266b7c434. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T12:33:53Z), 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/QZGLM1926638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeac76de38cde4c6d9da3f1dfedc19c6d8466d57cc99bcb523a0a15d3d8f644fd. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/QZGLM2034619.
Poucas Palavras: Muito para Dizer (Pt. 1)
Poucas Palavras: Muito para Dizer, Pt. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ff1153415b57f50e7819003134745e3ca73a03616f351919f8e4791461de76f. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZGLS2039023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2106951b708253e70f9dfbddaef65871e2b9d32ff985d0328b7bf2dc48034920. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZNJY2053271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd47a96f1c233c45a674a474b9b40340230e7569a9ab949675f9b51142fdfe474. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZNJY2053272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf50fe5a4ee08274bba484a1934ad4fbad0ef0de5e76e7581ecc7322222ecd51c. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/QZNJY2053273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8dad240f688ee0aa0c9c42fb300543ad1fd3766a28b3eb158dd2d20610347a4. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/QZNJY2053274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e5dac3603b52e329040ecc01c41d27b70fa14f8726477768cd5cc8eac2f5acb. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-21T22:32:59Z), 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/QZNJY2053275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabd56b78f26ffd7c9f3c1414ca8bbf828fcf14a38486fc943d0b1956970a880e. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/QZNJY2053282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c12f068e2be0be833edf77ce0b352f141dbddf1eabf592a90237bc445d2e285. Chain 2 (Bitcoin): anchored in block 957761 (2026-07-12T21:55:15Z), 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/QZNJZ2132098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ba5ae7c4b0db188d1d67ee3ff41c6bf6b5d636c685944f3f309ede33b9f374b. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/QZNJZ2132100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c078f5bf3dde3d32581a913d3edefabaa5d0945416f657b707272c604ab10ad. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QZNJZ2132099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c12f068e2be0be833edf77ce0b352f141dbddf1eabf592a90237bc445d2e285. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/QZNJZ2132098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24d203dffbf1c42e223309099cd49a205cce0b906257b770435dc0113879f543. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QZNJZ2132097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a0a7e329d5c4ea54de6a3fe6568c84cd96be0c1aa82ac8966e00e003fc6e4b4. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZNJZ2132101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1305250df316aaea80ed7837e1ed65760b1e925b9a87fa5d2aeb749af31d5ac. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZNJZ2132096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93626ea4e7a6feb5da57fa21db9ed29850f6ee75f5caf2f53d51b771c0c035a0. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/QZ5AB2296135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdcbcc1969422e08845021bae552a0ef3cb0e01fafb616cf68ca9b1cccaa989b. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/QZTVM2275310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82510b62f0b98d6d4396c75de3be34fab5d00f1960ca7de44005ac3dff14478d. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/BK03R2400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04d5239a28267e7cab9db87df217e5783c3a33ec73226064be1d8084427eb0c1. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/BK03R2500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d2374d6f16f11c9d0f70f40a762d245e8880356c991076fd839517626fa683d. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BCHML2200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafb3001c02f87fd58afe7a0e04b83bf824c9eb035534db2297419598267ceace. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BKMLV2500005.