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 0x1b334c60615ebff4588f1dac37da00ec118833a9120ed622d29f9d089748ccd0. 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/45a5a8e5-3233-4427-863e-9789a8ec9889.json and https://artists.proofprofile.net/proofs/artist/45a5a8e5-3233-4427-863e-9789a8ec9889.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x824620e14ed74aede9e1b5ca41665696677c2f2b23a1785370742a24c880f952. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZDA61871220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4004c24ff09302fbff02570b08561018d2e2a95ade685f73b4ea0916ebba0f7d. 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/USAS11900007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe11fc89e16324803c115bbe902bb561c152763427724279c932dffc5578c6596. 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/USAS11900009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bbd355ac9e72a4457f9fdcce5b76ef1239a039dc0b5c655959487337271197f. 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/USAS11900012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeca863a81be8f0227f560798aff2e02c7aa4d3fce6618bb7db0236737d2ea4eb. 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/USAS11900017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x384d1c5f08c569a7aaaf020e8ef58f7ea12675199d562c2828ac06341570fadd. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/USAS11900016.
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 0x79155a00f814e2fb68ee0e8cd5ea988b5cedde595f7541cf257a1ddf274d751f. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/USAS11900010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f8ff00f8bd9cfe56f5fd36a4d47a1323dcddca0a26315a72ca8ed4343473f77. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/USAS11900014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ae2b2a9dd2c3a25e13c6485de5b9e22b38fb92e37a5f655e3ea78b7e511dd3f. Chain 2 (Bitcoin): anchored in block 960419 (2026-07-31T15:20:33Z), 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/USAS11900018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f621b44913196349e0a3e67398edc2cb5477fedc411b1f87ca45807985c6433. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/USAS11900019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb8f1eaa38f0e7937332e1755b246c91e8bc550a3ab0e712506e71a3dc73c49e. 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/SEYOK1847482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ddc0e129ac78d3d026c12d2b60d57bcac3da6681b401a1f1b50e62360bc073f. 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/SEYOK1847485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e610e90dbccbb7b454b5739d64142a60ce62c48ebf83919fe4774f31614b77e. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/SEYOK1847486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbe3e603c5d573630adf295102337e6a2987006c57c443f7ec774b00e1470028. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/SEYOK1847487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64e93710a246004f82462237e077fe6f276d15af4095643f8a757c3d1a9f359a. 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/SEYOK1847489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb28c07ce7e90f4b3f23413c3d58c6f6a7ab525844cd7f901b8a9ca3aab4fd1e8. 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/SEYOK1847491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e7ea424b28970cfec899e905e88ce7b4997649bb7929eca83af4080ddbce821. 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/SEYOK1847494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dd34a5b1701356f4ec237c8a8e451135158eda382be9042a9a76955b41f2a53. 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/SEYOK1847495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65786d86f79f9339a99bb81844f1f5dec1ead509a1f8e865cfe1a54d0098db27. 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/SEYOK1847496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f57a62002fded76abc6a81878166853798962f21570a1badf0e9db0c0007cea. 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/SEYOK1847498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e8638178d65897a5597a5a0e9aeaa4d715ab0936671ddf41404d3ef06fb2c4a. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/SEYOK1847483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f2335ecc2db3ae6045d4150d096803e83493e10a56890d37115a57c11da913a. Chain 2 (Bitcoin): anchored in block 960173 (2026-07-30T00:11:40Z), 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/SEYOK1847484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90d99b8faf6e4851c00a319c18567b983f37933d5fb58867e59f8b1361f28cf0. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/SEYOK1847490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1ad542ba63725bb0ec81b4aab99fea426a892baa6221248efb9f0ddfd6da120. Chain 2 (Bitcoin): anchored in block 960456 (2026-07-31T19:53:57Z), 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/SEYOK1847492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd2b20499ce15af7111fa8443b24aaea3f8a2461d9cfd8367653fd027f101b9f. 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/SEYOK1847493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66283aaf38deea305f48d886e0e5776da861237d31174422989243ffc91d43b2. 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/QZWFL2324256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cd056fc743dd26d9bb03536689bf46e9cea1d0d7bf5b7bf6677955d0bc7f11b. 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/QZTAU2191361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2162ad0b11e241dd1c59370b39b9217db9fbdb47a232508c55e00f8b2620082f. 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/USLZJ2147054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a9fc22424451a555668b3f71b3f5fafe378ab036c29fb19bde7e748a681c58b. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZFZ32555931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x847e635b9641a14985da35d3f7139a8e58a2fb880efe0162af70502e9d138ed8. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZZ7V2423872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75d97514442c1b0b13bb7e6092711c2d8e1be37d0664bc739756c3406da6e6ca. 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/QM4TX2306056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe822c6a95cc100379f223c34850e9f611d79ab7c2cfc8723db8814c287098d7e. 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/QM4TX2306059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fbbf050950a889780ccd5c161be7e945099935eeaa3fc4e47ca0b81c48457ac. 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/QM4TX2306061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1d9330762d2b4ddc91dd831dc15c84dfe0d2b1ab52658c5a988e8716d0d4840. 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/QM4TX2306058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93e010cf2197c8d970831e9bb626402a0747254e7d224810e6503694556b90aa. 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/QM4TX2306060.
Stressed Out (feat. Dave East, Cash Carter & Piif Jones)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccf80df0b864dd9612d9b752c423564fc9b188ad35dbaddae1ca2acc58015a08. 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/QM4TX2306057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1228ba0d4d15b09adb23556231176a83ca918b09e22a50edc5a49d510545056d. 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/QZWFU2460112.