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 0xcd4195dd4c832556c47fba2a339e404f298c5d9b81802c4dd0b225de0304866b. Chain 2 (Bitcoin): anchored in block 953618 (2026-06-14T09:16:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1c75d6da-fc09-4fe0-b269-8b2f5eca4479.json and https://artists.proofprofile.net/proofs/artist/1c75d6da-fc09-4fe0-b269-8b2f5eca4479.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 0xd048494b824f8c44a4cd53e0c8f6437509701b2a6043f195caae98babfcdd393. 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/FR6V82599055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1496da4642a5316cd4610f328836c8b0681b3013bc5bedb10268ee2bf31861b1. 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/FR6V82599059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb98e19d4ace0541932f24176843a53601a55dc903800c657acedcdf26678d56c. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/FR6V82599061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe004e1ce984b497810b6d89dfcf3d3c260b1de33e5a7617fc4c95801ddc69f5. 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/FR6V82599063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe839ea2ac72c686400f2f22d61e40ca4b68b37fc88bccc14f11168ab23ca6627. 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/FR6V82599065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5600a3972077e899a2a2e2b35f3e5a3b10ab78eed9a7d70aaf8dfac58f58491. 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/FR6V82596243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbde1a5c2870ef6fe9fc7072548ab8e706363ae2900152fa9c70a8835edd54fc9. 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/FR6V82596245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8e453112b18d780dc41c343cc6a2f35c68a7adad7c4617b20541067fbd977a9. 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/FR6V82596290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2a6dadecc1a795ce1894382234f5c787c89767ea21deadd570cbbcb25c8eb05. 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/FR6V82596292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb0cd3ee7f37de9e0468e7841c582275f08054e26a2e7991e478818ab4313403. 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/FR6V82596293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53ff96b723185219bf62895ae08a7dce1aef80cb0beb1416e8d63c04581875e5. 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/FR6V82596295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca89228dce25a763fea7754521713ab3fd73e638a4549a37ca172895f07e213f. 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/FR6V82596297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x349c035be25e544db3dc8833c48295ad816ce2e8786a9dc3c8fdc6fab75146ca. 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/FR6V82596299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0296c1dff88d60e78a91ccf87812fbdb13a0c3537d4588d6a291587a1d01bace. 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/FR6V82596300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81af272739adb06987b01c8d827e7b3999d9083abf637ba29b57f23fe51d702e. 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/FR6V82596301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a8f126d95028b96052da972330075a4cd7b8acc541be78e34d147e06dfad575. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/FR6V82596231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0e0fce8931ab1ee3ba290af1f221c5e1fe0cd78f255a6499505c048a2aaad7a. 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/FR6V82596234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7621f9b2d01577f0d1d61d2c0845c3fc1fef8d3925f1ba2c33a238542dca00b0. 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/FR6V82596269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84a1127152522c3467e2e2ac08cac535e963ca67de9cfdc6999afa86412ca05f. 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/FR6V82596270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90a5bb66943d3282530588a12a2ebccb7d58d755f7e353d3efe7a27984aec1e3. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/FR6V82596274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4a38e0d72228034d773051f39cde0186ea09781875e71d0629ca268b1ecd4ec. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/FR6V82596279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb145bac8c68b4fadb1ed8a70882112dd53fdfaa68fd0a7ea2111ee4c217f8dae. 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/INV792404814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e535cb969133344e20b07cce3c42e153c9011588beed193e7dd25258db922b1. 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/FR96X1886922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7031d81c8abe994b44f45580ee7b2ce039c3ef254ef728bf549f1a0ce9a886a0. 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/INS181306465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe71c0a278888dcf4fb251d4b0c1397ab5859f9b6c2974cb7072129aa4e686de3. 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/INS181306468.