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 0x1b744f6c1c422cbbec01a3103a682e7c38d77bfc269467d2e82d5442c7bffae4. 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/146f7ebd-7dda-4580-86eb-a9928f5f04f1.json and https://artists.proofprofile.net/proofs/artist/146f7ebd-7dda-4580-86eb-a9928f5f04f1.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 0xb9a68390a73c74526ad1941f3df0b9d0e100d067edffe7648c4780db6d443376. 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/GBKQU2366388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc882dcffbd97b6ab7bdf80e58568d5927e8ca0e3be9979c9fcec21254444aa6. 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/GBKQU2366401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f56dffc514e316c370c52e401c8e43090688d04027cae6543843478829222b0. 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/GBKQU2366402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa732a77d7bb775d00d14738459186f3c3407bf50f21cc2f2fcb6e8ba18e7fc56. 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/QZS632530465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30763a6db7ab2092e1209cc88c64e792e262926b29d1679707dffa5e3936d7ed. 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/ITV952400305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f7e869222e7e2263f423ec7156c99f8a2f8a809d9234dbd0108c4bedbe3929d. 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/DEA622402222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b703cb703f9e6e5f993ab2e3ebe3c5ba3aec29cbbc2d2cac2fb8f5e6309ce07. 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/USWB12402969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbff1c01470426734eac5c35c9e8f4cced41d1fd75e83fec218fa99cc11e37265. 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/NLQ8D2300259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79ce8615f6fa00ef4f19f7a71efb33a25794061c1f5f24944abdef512270e109. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/NLQ8D2300261.
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 0x6f1619a8bdc9ecee3aebc7c5a03121bd6ab8c62d34e3ef406dfa5eba8652703d. 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/GX8LD2457243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2546c861b64f01db151b957c6e961a815195a6f794b27482a4c7e06ac8af748. 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/GX2YU2500010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3effd24f09ac66c16fb907128d4b06d35171c721ae3ac174caac7036eeaef700. 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/USA2P2508292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b34fcfaba14e4886e7501422ca7fb88d941ddf586222efe48e56e0390061aaf. 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/GX89G2579761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7677431d4704b282149673ad617efa60578f4b51711b62ca0748a0413818c691. 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/NLHR22401229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3816a625e59b6898a5f27225b2e39e62b043ccde7fb97f5a2c7f7d7d8de93fd4. 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/GX2YU2400079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9265696441ce990240112a9b75067e26844fbf9242f71247d7e7859c4e89a3f4. 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/GX5MX2481791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb97e302382d73e99bb675a198df6800bf5c7e2339f82276408d37a5272b1522e. 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/PLA552400547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70fe1a9460dc64b04a6dd3a51124ab1c7fa2cd1b5087d92d0e21b27be5e11a16. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/GBKQU2469848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4befb9fdfd826013f6495c967f58fd3ab5cff0664f3bc68f1fff66ab27b01a8e. 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/GXBDS2324638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa07a83a5095cde6899c43e7ad1e8e4b2366feb9ee8c616670c7e8788f8cfebd9. 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/GX5MX2470532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52f7e37cd436e4e1dc38e74171ebace5709689dcc2f86c86226cdff6d8c85032. 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/CYA112400023.
Nothing But... Essential Big Room, Vol. 29
Progressive House Festival Anthems Vol. 3 (Mixed by Pavoire)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd714071cc2e05edcdc3c970ba79a78c2077f60497fbfa365ac22f331f12a65d. 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/NLD682501260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf9c91c963fc6bf430714f7df5133ff8a4b6c6bb38d7162e716dd5d4b03d70bf. 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/NLD682501261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cb626e556060a6e1a59b45647142b4c2d57a944baae6f0c29dc7130a0ceb08c. 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/NLD682501262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a8f346d1cd9d188161a0c24419e6f7c6c81fc7bd8aac816f737b7c54af5ec3c. 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/NLD682501263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf38ec5986f4bd72c6b89ae3ec2de0c59f3db098daedefc85918d40b767662633. 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/NLD682501264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21d321fd3377020491076424c31dd91536769327b96ac43e2c53159cb7a250b8. 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/NLD682501265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86b2b1834d57f61eb7ebd9bcc93a37d1d8bcf6df7139a573d56578a3f0bcb28a. 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/NLD682501266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecd80ef925e4bcf244f67e7c83a035e0bc65178923bf2a5910b121fc296b6668. 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/NLD682501267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x105d17059d3c18fb34184e8332e174ca3f89ad9fe58aea24393a78c97dab3ad5. 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/NLD682501269.