1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x41d5acf068b29480f9f3d5a7c4f0349cf6287b47f1fa8e8fb7bb498bdeaadbbc. Chain 2 (Bitcoin): anchored in block 953713 (2026-06-15T00:33:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/80562e70-93dc-445d-b1ce-6089a4702585.json and https://artists.proofprofile.net/proofs/artist/80562e70-93dc-445d-b1ce-6089a4702585.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 → block OTSBitcoinBlock must exist at that height 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 0x6f15449214da8ffbe5ddff3e4f75505296669a4a1d10c66a9ac44fe54454477c. 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/TR0659703184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x752118a6084c51d2fe2502a33d8ff1f3f00842bf506b947a6738d958b2a9e1f2. 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/TR0659703186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7270697fa8422250c2e896f62fe1c2676149b70137e47ea9b9753561e212c335. 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/TR0659703187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78b3153868eeb29cb045541f0b59a02b7583b1686394fb027718a664dbc3eb04. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/TR0650845680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29350c48594db0852c4e5619515e20cca82158e250419e477b0ae278a32f4958. 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/TR0650845683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf60dd7967f78db35e4615d83f7bbcfb88f14aa1737c7e4a6a4f4296af5d2ff76. 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/TR0650642186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4c125369e7e3cdf212a8b0ba1954d509bddb714a415e2329f7ba3a30d04aaad. 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/TR0651800004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa89993ea5596448c2445dabaadb669c8c6ac72425825df459a41276bb9766d70. 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/TR0650641238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffb3e8847a952a81ccef076412cfc8008066da2e8072bf9c0c59779612042853. 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/TR0650640080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b650a819bb7a27344d406e5c552e5e0995d3a0dfeac720c83fb99a2c0948e4c. 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/TR0141809143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37bf5c40f31462747725fb9e55055e0c55c25c65cacff83cd57c9f6ea451460d. 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/TR0651102971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb7a41c7db204b7ce7ba07488ae37f16040537d15f186a66689df43763c576dd. 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/TR0651102976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff5ac0a07375cb75a817987f2057a3f270bef5cf60d098faf541ba38a4496d63. 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/TR0651102979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d580b171f9a57fac609126344e18b73521f3552881d40ca5341857d69718aae. 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/TR0650600395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00960e5f3cc48c63185252f1b19846adfccf87138181fb5d1cc248fff5f46fe2. 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/TR0650254661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf541d371ef865714ae2ba7f1599ba7595e7ead36deea91b98d0bb81e218b420c. 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/TR0659802142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2af5a5b4937fda2639c1b6ef1052010559eb058719494a42f5db7627ecf4cd75. 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/TR0659802134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed39b49b37dd227eb26ce8815bf22b2952bfa45bb272e02920ba9cfef4285412. 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/TR0659984231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16d8737fc34595239cb3bc8be156cbdbfb4a0528d6a88fd02c508f53f128ffb5. 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/TR0659984232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11e861a4203f9f746d267690fd51de5bed62a1e4072b9a3d7c728c5ad4991450. 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/TR0659203372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6faea0c0223c2f807fbf628a59e04dc5e5a5b1b82ca3679bf1d7cfd699af7601. 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/TR0659203375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06e7a6a6c952dfc86557a55f23c17c024e8513e80dc14104d2ed719288e6909f. 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/TR0659203377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fd43aed8af88e591d1f5af54189fca18396123a3c40c32fbac6a6a6c89cce2b. 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/TR0659203379.