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 0x4b8bc4f3cdf572c23188d0a4bb19b2d9ad2540da10160be647046134c372fe88. 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/31d8de0b-bea8-4d81-8290-29b1d66de487.json and https://artists.proofprofile.net/proofs/artist/31d8de0b-bea8-4d81-8290-29b1d66de487.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 0x8f75c81ef3fb40ecc12e6abc7129f424e1948733f86377a138f08f0eaf8cc5f1. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZNWY2061464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ad815116963bc777bdb61bdac06543e0e31ad5dd818eb82084b331e691320e4. 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/QZDA72158389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8046aaf0f7fcff77033bdd7edc63e6d5f39cff49015cf332def12dd8c233af50. 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/QZES82128522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x833f9972617707255f080e138052481c81444917d41fe4ae2ff187c4c34858fd. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-16T21:55:37Z), 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/QZK6Q2086121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb53470f3bad5203fb013103951a7ce3e3c2b8ae1274ca722b7893b0b8bd680d. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZHN52167622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f130058b11457978e6ec1096e67b9bf07742e19f554d090f738de9c3740d756. Chain 2 (Bitcoin): anchored in block 958523 (2026-07-18T08:54:12Z), 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/QZHN52167624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5be786be1df63831a418e8b151064958b551d12386408f7dcbc90a54dce58221. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T00:52:19Z), 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/QZHN32157312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x090231ae212a102655738d4d368cfe2cfcbcbcd7d30cb3142488a2ce350a332f. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZK6J2116749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a3dab6915f5e4cf484e67a0574b03293c58ecfb15c0fa3d32685c00ff2f6f9c. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/QZNWT2170895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd40b8c9381d533845d49b29e974885f27e7de9d81470824979c101231a9d8b8c. 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/QZNWT2170896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3b679f820bba1d85eec454ba0efed2e7ea27d35b55608b231ca67d83b1a52c3. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZNWS2201278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefd5dbc3c1fd9a5023a3a3957c3301e38455ac664e3f55ca7d3a19309eded94d. 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/USACX2200638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd567760947f9de250d8f3ead0b572047e9dc7163c029982aafe4a86219e00a1f. 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/QZFZ42317052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacabb212411e2022a33778a857606edad1fcd83ce8fafde33f9e1b1324069d77. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QZDA72319309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf64730c1ee43d661e3adb529c375579a351108b3bb0a88bee23d3dd719530316. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZFYY2463263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x228ddd2a7b887961a8cf0c85ed6963a4a31027fecb9deffb12f3f47919856205. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZDA42498987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d5b6df1656ec5a8145fe2a3a847bc045960fa4fe6db23c22e1bcd20e7923a1e. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZHN32407465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafec755ac61c27a9cbe64c61bd2886eb1777c0265a8d8c0fb4eb242b440f1681. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZTLA2402532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b2a54f097888243b8dd745c17b4121b43636cb93e276a9d8918b9912cc11dc5. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/QZS7J2476692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49cad14c7f2ff9ea9f8fdc572a9bba2215cac8991b6b843f2d7e38b87c08751d. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/QZS7J2455626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x979cb160330dac9c0f5e7cf1792dc194bcda4095dc306af2fcf61b277d8d51f4. 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/QZK6J2110610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80b9b8d833ab8916b5935cdaeb440b93a84cf458445cfe19f4715df21744dbfb. 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/QZMEP2358435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x925aa51ad5fe8399e042cf52b6061ea4c99693f3c1b761bdc7eff90223db9598. 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/QZK6F2202936.
Christmas In Eden Vol.2 Winter Wonderland
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86f1af1f455a7ef3d50ed886000c2fcda9e7a88873a5838cbb23b1c610f85868. 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/QZRP42102717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae11a375050610e5db4353f78fc70ff009322c4d3f5115255ad4a07c1c72bb8d. 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/SE6HN2187046.
CHRISTCAT CYPHER (Rapzilla Freshmen 2022 Cyphers)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cc0926ea781544f118e23c4f9a02b4cf931553b53e0fb593fd49ee4dcf303d5. 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/USACX2200787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cf448269856f9a7844648c08aeb185619d24fc1bab2a297f0a25c9a7d79e2c2. 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/QZNWZ2260527.