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 0x2db899b60f63e0c2e09bdf2808f5761183526c3fbbd5a43b40bb58ed01c7d068. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ee848e86-4953-40a2-bda3-9e117726236c.json and https://artists.proofprofile.net/proofs/artist/ee848e86-4953-40a2-bda3-9e117726236c.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 0xc78b2fca92c37ec25c5c51eb5997fa4e38aecd0714c305d38b38f4699f430975. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/CH0832103380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74758d1e22237cd5035cba8b32a2aee3bfdc2ea2ff411a0ff9218b6bea70620c. Chain 2 (Bitcoin): anchored in block 956620 (2026-07-04T07:11:13Z), 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/CH0832103390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x487f88dfa22081eb3e81525eaab3d145021919b33f6b1bef36697065766bc2be. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/CH0832103460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a47b50078af344c8ba05380b0045e0efbe24340d58b0dc2d88ad06e9381dc57. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T23:19:01Z), 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/CH0832103480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf97f02a68d4d28879b7330f4de924012eea706d1e44da87966e68d3c545ec8dd. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/CH0832103490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x114c9187e69d1d23aab56bbc3b48108cc854ea7e4729ce10a1c7595ebdc7ffb0. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/CH0832103500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7beca4a0d4f0bcb468d8eb206edb3e7fa7ed294deae8454185c74adf236a4865. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/CH0832201530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c83abe061f122ccd5b5d7d710a4b1b00aa90b79adb8ac6795c99693dd0d6a42. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/CH0832201560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5614ef3e6357deb6e63d4885f4fb5681fcd131c4222dfa74a7754cb3636b0203. Chain 2 (Bitcoin): anchored in block 957767 (2026-07-12T22:25:13Z), 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/CH0832303330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc42a3430c60f20396207276df20b24bc5606838c54693777bb8e74dee4c7b262. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/CH0832303360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4535552e91f7ad2590e4cb5d67a83c9bf1df57cfe7d14a0a681cd2c9f857392. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/CH0832303370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedb25718da16915a24c213e164b4d0ea23a78fdd79dd222790e34f83ace4326d. 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/CH0832303380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x050acc7d348c93218a16b8218a547373712a02520632700c2049cd9c465476da. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/CH0832303420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19956a333e7353a915e4e8d5206e1e9f77c5d64fc34a2e950064024af6eb33c4. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/CH0832303470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32311fd5364802ee20fddcf6ce19c3d2b5bd99c19d0ce6f97bad35c876fa166c. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/CH0832502270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8707f620fb196cc88c0b4a928c3be9df6fce179ca99bea8de89bfb69ba007810. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/CH0832502290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2c636c27dc65b7e3a441e0cface157e0ac19cbed2fb2f26e03cfb4f7039a0f4. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/CH0832502300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89278c5d927400d5a54c7487abbfde999af1b5fe4d1bac68b912497a9b1235b7. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/CH0832502310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3be774f4b83636acdc31db792ee14308106c5c4583b265d1c8d7cf75233e229f. 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/CH0832502350.