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 0x1bae110b38930b7e3034e9ac344ab8302b7b2500b8ff12c025f844bdc4e73953. 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/907226e9-ec7a-4930-8aa2-1369f10f92f3.json and https://artists.proofprofile.net/proofs/artist/907226e9-ec7a-4930-8aa2-1369f10f92f3.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 0x9092e914ca1ca1f641477141a9361e1eb9d75d6d7826fcc4b79991210845e691. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T16:43:41Z), 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/GBLLT2341953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xded8ad98ecdaf46cc4108f98a36074021cf9355929dbd5acd552ee1991775da5. 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/QZFZ62367381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9517535de7c298fe4311da9d9e6aaf6906cf0858f2c6aab4ebd871a9fd1b5c2. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/QZNWX2232956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaa8eba34f5f8ac7646e897c14a85246d98c117ece56957a080fa9bc3435b19b. 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/USDY42254494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x137c99b5443f4002eff81cabf6714e68a4cd404aee120c46cf0b58a8b26af17e. 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/QZRP52494839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bfef9f904583496ea4531729e4c59934e0c9a9857c0c2ead00d69249a91719c. 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/QZK6G2471292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaec25367ffbdeaac81bce1f137d7dbc6a619b8ad424677c0b695cf52f3ec9574. 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/QZHN42459959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf627bfeb03c2e0b29945e4d13295813c3631dd674c86b356f3e836d2b66d6707. 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/QZWFG2344240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54ee3ae446e77cf8aee42c2723a3e9835ddd5810137c6df95c8da8e57e813f33. 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/QZTBB2356899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bcdc54726b3d9ba88befcf4579ea266ad1bcb71282955d154ed286d396ad883. 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/QZNWQ2365389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc46ef44effd3f6624bdec32d2017fda488f14abafe43f4a24a4d8bbb07f03108. 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/QZMEN2219615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc203247a9e0423f1d76f259ca5184c8e4c1e69f27b6e1ef11808f431504b8a9a. 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/QZK6N2219591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d59bbbc5fdc81ecff51cae7e11a413d003f4a466cf5be978b5d1b8c7e5b21d0. 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/QZFZ22115874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x867acc7e1f9e3b4147f4b37d152cbdc8998ad49b0a0b8c1541a57d3c643bb1d1. 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/QZHN32090662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b937fec5bde6a70368c8e022835f7c24ec97b49f588bbae29e2a5d3e10c0986. 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/QZFZ21943774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4317c3fb4f5a0c646a4d2556113b72cc855c70f9689a7deb86917240ebadf5ef. 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/QZTAZ2574194.
I Wasn't Searching (Stripped Down Version)
I Wasn't Searching - Stripped Down Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74b280eabdfc7eabf8f0c665207b8488ff3486245ad08e0d852dc9be98e24fc2. 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/QZRP42527967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b1c2bb585aa38aef9fd5db372908f5d088a9b1a67efdfe0d64d907f105b7d7d. 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/QZPLS2514202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa567c74acee29c5e7452b762025ab50c2ffcdf28b23b5f88f04c723ad4a3384b. 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/QZK6J2559006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x365e95bf210537861a8edaac11951c60659ad7e5d5a5fcfdce6ba8eaabd9af92. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/QZZ772419381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c59195bf554c5d36645cc40d6aafd1fe290c6872ab458dc4ccb881fcff7539b. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/QZZ772420660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb083498dca8405554be3b39b5579fc8ee5f2ea16b96a4dcf98e5f62e2f10a34. 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/QZWFJ2492413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf627bfeb03c2e0b29945e4d13295813c3631dd674c86b356f3e836d2b66d6707. 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/QZWFG2344240.