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 0x94988f51da670425ff82041d98ed17fcd82b8006ea854bdcaacdf94cb151e271. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/27a62619-54f1-4c63-9566-8790f33309b5.json and https://artists.proofprofile.net/proofs/artist/27a62619-54f1-4c63-9566-8790f33309b5.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 0xbb24d92f700e841b0c066f23c0c1c33d43336c21506a1263df20b732add51ccc. 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/BCSCC2300017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x897d5ad069076a7bbaf6437e9f3ec686191455b71670fe5c130adb3acfc5f701. 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/BCSCC2300021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x684898aefacc4243d0fd9738ea0d12e51020464d186c8ad897c6249aacb8f09a. 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/BCSCC2200027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67cf621e417e530ad671be7b7a23faf365875a1df039e71f2b2ec47c30739b32. 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/GBKQU2479840.
Drink Me Like Water - Echonomist Remix - edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x081057c3f79cf1006681116563ffee7e8fdcfc48daba2cf18f8ee7bafe30458c. 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/GBKQU2479841.
Drink Me Like Water - The Organism Remix - edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x460b42fe472e66c72d9ac6e055920ba44e9d16d291cef8ecce4b79e6de169759. 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/GBKQU2479842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4657a2716a28d74160552fa1e8b0aa666672a32fa8670f24bd01256e46949e0c. 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/GBKQU2479843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c7f6f526f0a038b711dae5ff918f6a8e9bab81a69a6d41440080cd3036e67eb. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/DEDH72300247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43f21fb93017682be9ed50b6780239a414ff8f5822aed84d15ecc1422dd5f181. 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/DEDH72300245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19345ec83657709124ef0d027e73202337c0a78d2175faaf393b042076e1e962. 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/DEDH72300246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c7f6f526f0a038b711dae5ff918f6a8e9bab81a69a6d41440080cd3036e67eb. 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/DEDH72300247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x998d546ae4dc586a304073ce25f0ec609832867b37b2cd08d91c43f916ff2a36. 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/GBKQU2433989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x055b730b4328dfa1cbb02101210eca642de5da5970d0687118f9767c0bd1dce7. 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/QZAKB2373926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ea7bc0029e925f9cf1ffb542937a975e0b9f9848f2c874bfc4d62620ea48fc9. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/GBKQU2418218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f349e1bb45e1e55032348f18e6e123659de368f13af4e5d3809cb944933213e. 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/GBKQU2418219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe19a0e6a95bc9dd5f549ad91bbaf489d5711ee485faa42308e452b23ce3e2222. 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/GBKQU2418220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa139ac10de6eb35ce1a1a0d285464dc9c2c1dc138b34aef115b72ee7156d1f57. 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/GBKQU2418221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c04f78944d68785c9b789a5f1e5e00d485f731ef0840fe8008fa7cb1346bcf6. 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/BCSCC2300034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dc659c4aa9f24094aae619f6565400b2d613dcba0ec89c8793afc8b71a45d8b. 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/BCSCC2300030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33c34921bbebbe70c691919b48a0443af4b24816e27a84cf2642f584c2b0d755. 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/BCSCC2300029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03fda242118c1e533ee6866ed1314519ea3d47d114ee36f7c01be67f106509d2. 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/GBKQU2339383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe26b9bf2451d9020a0bcd12971e9bc9b14e0d37aefc884913f7adaa03a81e472. 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/BCSCC2300001.