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 0x057595520317d6ea65c3c31b0d2aba22a9d80f5499d2bb5fc766a2ae2dbf773c. Chain 2 (Bitcoin): anchored in block 953772 (2026-06-15T10:33:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c460b06b-061c-45fe-b8da-8a7b1072b0c9.json and https://artists.proofprofile.net/proofs/artist/c460b06b-061c-45fe-b8da-8a7b1072b0c9.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 0xdbd97c61f27b2aef5abd3b95ec01ada47e98439503880270184242ef5d8ec33e. 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/FR10S2084843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x906c38b4aea00e9d419722ef7c5877835f6ef349398acca8f3b28facf2e802f6. 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/QZGWW1951763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a4bf7de7b4f2ff76372a0563d8a8c2699ac2279acc6734758386aca216e69fa. 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/FR10S2084844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x699176ba08a37043767b55be93ca1b2c10954327a07a482445069995accfe276. 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/FR10S2084845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe70a6a9fbef250b9a9025ef751cae3f3f5ae6bd4007285260adfe44f56d53601. 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/QZGWW1965245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc685a82c35ce8af2744a618798a2b4834742efba0608eddb15cf3489741adb9. 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/FR10S2084846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x295f4b173cd6baf492bcb924d41f94d7865e5b1adba418de685a985e79fcf525. 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/FR10S2084847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99832207757c11fea9584dc8c44ef38db36233f14a099d18f333122a23600c60. 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/FR10S2084848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99a4f1ef6baa3524b38914c19cfaa1b8197f56b4f4db1ed9fd824126caef6362. 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/FR10S2084849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dff0e528e0816a9671da23f9a37d22c5b8a32367cfff669f14615b24ce267c2. 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/FR10S2084850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45e47ac89b3a57c11157e5af991d5156911d95f295709e0cecb0010f1f2d944f. 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/FR10S2084851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8187c90fa179ad8a59f125add1565cc595f63f65f52e2c657687bad0e9aed97b. 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/FR10S2084852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x428f7272b1884ce472ff4b49bbe2b0ecdef7bb256b9ae38f54c782f0956f0028. 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/FR10S2084853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3bc12db4f31ce6690324e39f091ab5d694ab30afa50b9d3894acb830054a4e3. 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/FR26V2066633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14c48a7e2f4380d487ed9397ab02cb8d82bd0812f3268b9ce1dbf4c353398224. 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/FRX762022684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f0b4a158c108a9c07abd197bf8029bdde590034ab7e1689dd14fa3e1dbee9c9. 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/FR2X42000461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd384407330de84c1b640dedcdcc8084ef34d4af7956532f2d2ca550a793461db. 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/FR10S2140722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c6af8f61fff14f663503f92196ca97ec2e4574609b48f767760be7c21b6d907. 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/PLF242107606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ace1de921ac7116d36be2e23cbd503efd3910c2b999e0c190c8befa3288198b. 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/PLF242107607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x516eadb0edbcebe68a6f95e87d70e2b01ff7d7708597a12fe4799e2bc5f18180. 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/PLF242006919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ea7860f31569a9fb7dffa731df3b8511e1f3081c66ade7bd5ad06cb2765d0d4. 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/PLF242107608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75dea0572334b48477f74e9a9bc31ee8873b18b88737c277c670026db3598247. 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/PLF242107609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d6ccc09f8c79aa060679b14fa40f5b0b3801ff18d58a272417d55f647f3841c. 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/PLF242107610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27abda2d50b5c772a9e96e42768eea26f7eba537b86ced76144fa3b2efab65b3. 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/PLF242107611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf334f88c58ec24c7ab29fd687785ecead5d6ddd9a0b9341302db1a975a3d24a5. 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/PLF242007391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4628e23b8eae1789440ff1114d65e30d228cac90f8e1fbb98ffc1f81ff7686f. 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/PLF242107531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x849b721765a3db53acf7177b94d2d3a613168b4cfd64a1e6a58755d2cdaf18ff. 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/PLF242107562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x907ffba1cd0a1218970a807d76d96dbc5fc1552ca17a1046efb09efce7c51241. 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/PLF242107613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd3a2a14ae1c487789e636137a659fb4bbcd6dc73ce32b4e505228228dea59a8. 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/FR59R2132933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43c29465f5f9ca2495cebba03c083af940fd5dcf3bc8438495016ccfbc7bdaba. 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/PLF242007411.