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 0x6f47419d8ac87e1f1a42fdfa901698b46c7fdf7fe6ec28c2e71442ae47287ac3. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a34f12c2-6ccd-4617-9102-e71eae932427.json and https://artists.proofprofile.net/proofs/artist/a34f12c2-6ccd-4617-9102-e71eae932427.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 0xe3695b6e55a5e52118d3540dffc756f8da02d41060e0e65363c0da87caf7a023. 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/USA2P2329769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaba11ad0e7f23fb81847955b5ce4dc15c4606634226cb58adb1ec7e3f9cb9d38. 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/USCCW1611007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff101879ffb5219190d33bc56fc6ce062f4f01ca8ff718e6d970642b900c55f9. 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/DEAW12300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x602f8767fe6beeaee186bca904a6f2b8fa4fede37c89cc1ef7d139bb29aadfd0. 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/ES71G2308222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98a995fbb27c6adaaf942235ab2f1a1f63dbcc0392c5f56029265a25425f0768. 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/UKACT2230242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb9d9e1c366e605d9f25a1f3b8d01cf3fd1e468b7fd25678943926ac92e81ceb. 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/QMJYS2100714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4233627fdf87394a95e30c78c7b21c04867234d3c83994ac5e07e46c7cdc964e. 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/USLZJ2309092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc9fcf31bb17bf8f9ee95988bffd554dd8b5e0304d565ce0589d0db2d6f88efc. 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/USNRS2242169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91589133c1928fbdc60a95e3c187c1d2484a034a64a7c9884c07277865db0896. 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/QM4TX2246612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa93b3f2224832d23b6301f3253db7c2799b0a61946095ddb73492abc3daef196. 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/ITT742300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6bad81ecb1acda5b456e1819e75fba4d4e88457f954b6c4e51b2fa68c7881b7. 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/GBUQH2100024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46500a546437821be6afe1366beaeb62954e7899991ec41fd57312dea038941a. 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/USA2P2044880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b6fc6289abc1513efe2b71cae302eac3c2c5f9dbc7c5c923a88fcc5e96a86c6. 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/GBEPM2201783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ab7f123bbc0e062471dc313aa1c9c7e43bdf8495190032324f7b3594f9d3465. 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/ES8742329206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a852e8b62c50588d756145040537f39d4f72ae34782598c13b6d939ecf66fbf. 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/HKJ962201578.
Elusive Realities - Alternate Sundown Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceed9dfdb728c2a0aec8ceb5131ba084b40da43d372f3353c1c2a273183adea1. 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/DECY52200873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f56493a7c35c8c0dddf372ca823820300ad34abfbd395ce8c5e4fcc906283ef. 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/USGC62001063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa71fc3a0ad054c004f465878d555f6400a133486d63a5d2724ca258c09eb8490. 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/UK38H2000013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31a7ddaf5ea344b06fe35a7051615a800fc9bd1ddaaa5682fe667c5c8f9c42a7. 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/GBKQU2354013.
Pora Sotunda - Finland & Aaskoven Bliss-Ful Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66a2aaad1a59d97b5e706c696c0e28dc84822fcb7617bc7bd7be03af8a93510a. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/QMFMF2128714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc2cd8f30835ac93a6ecc1e2a4d741455699386723c3570011f155a4e94a2f6c. 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/DEL021670048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a2b2da07866a3587b9d4597812a78118f0c5eaf660d52fe6a4d6efcc08c8f97. 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/US83Z2200559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a6ce69802694382c50369857fc36cc52f70cfc17e38adbcc8e9a2f91b961392. 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/GBPKF2200061.
Midnight Meeting - Gui Boratto's "La Chapelle" Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x006bf34d8429f3c3e928c81255cd3ebbd25aa7f6e5c960b0eaa33ef85477c38e. 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/DEU672201158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f56493a7c35c8c0dddf372ca823820300ad34abfbd395ce8c5e4fcc906283ef. 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/USGC62001063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bca7993ea1db988bd20445ffa9ff02f41bb1098f4e045427299d44004fc80b3. 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/USGC62001135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed55028dd6c22b2b87780c9e9801b9ded279215c0c381656fccf6fe593a1eaca. 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/USGC62001136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c6997800c2ba5a7201e39f2ff6b312d13ed87e32ee5e118a59bf0731c6c1826. 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/USGC62001134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95029c4af81e30e3204e23522caa1462662ddb4500c8dca347ca6fe5c8fd6ebc. 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/USGC62001015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0f27354a8c0eac80af3dd12a026a5675f2afc7538103d84dc93b588e49cc24e. 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/USGC62001120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2bec9ea9a56a61db9c2421376309d0861be2849db05b03d1ee2cbf529fd9768. 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/USGC62001057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aea9e7b7dfb185826bc0fccb48700b537fd9b87a3e9e5661382c37834d95bff. 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/USGC62001077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc35d4e4fffc8524dc159ac73a8c75d36a68a005105c203bacbef2492b5470872. 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/USGC62001137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f56493a7c35c8c0dddf372ca823820300ad34abfbd395ce8c5e4fcc906283ef. 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/USGC62001063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c3cd92f05c28abebda313617a1d3bf790cc3d13a9c458242fc3ecab345af791. 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/USGC62001138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a8ec305ac52accc7fd0a7d2cb4f3aeda5e0e1303ba311935b6d380246d79999. 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/USGC62001139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4126237cb383ca4fbc6afec084bd66b56f89174e70b307f9ee54cbe86fa8d0d. 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/USGC62001140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6751cc4968b1b9eef3f710509e8aa2457d25cbd5e8361c270c5f5af31d91ebc. 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/USGC62001141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ed1f1feae7c524d97b521d1a6621f735ddf766ef85bf0fb19a8e19293da945f. 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/USGC62001142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a5de04930c2de10ead7203fb878dfdeb0ea224e9c09ad161c4e0039152924ea. 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/USGC62001143.
Bastard Jazz Presents: Hear No Evil, Vol. 4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf976afc3b36cfeb6dd0ad0500a7311568a5725befb2b393ad55f79e4049e580f. 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/USGC62001257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x139a0f4d9c702b43c6f1464d931f48b6c70edf04c2f87f8ecdb78bdace6df8ed. 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/USGC62001178.