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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fa374aeca1c1743ef5e0713d45595105f2e307654ab977ad431103abf1ac092. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4412972f-86bf-45d7-a9ac-38aca5e9b8b9.json and https://artists.proofprofile.net/proofs/artist/4412972f-86bf-45d7-a9ac-38aca5e9b8b9.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90099a1e9eb662e39ca3d193c1fa924ba29ec76274dbb56265da30465bc1de8d. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USWD11366303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99e45fccb05d23b0fda868f5fbab8835b4cb77378d749eea68ba266bdf79a46b. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/USWD11366314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89b3ae7e4d2602661ffe8641d303cc88dd66a3283445d08657e9a6261324029c. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USWD11366311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c6cf3b57eb2d6a79896e441b330ca809d592bd51ac60d51533ca216191ee038. Chain 2 (Bitcoin): anchored in block 958197 (2026-07-15T23:29:55Z), 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/USWD11366316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42a4574711d452294bf2d27dcbd4f1eade82907d808b275aba38c82b24e16156. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/USWD11366310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0662fcfe521e1c43744263af1d802e3cd86d11f30d3db272be4ea27fe5a6c7a8. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/USWD11366298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3e2dca219ed1e89353b2364abf2cd6e8986962f3842840bcd3398fb93b2497e. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/USWD11366307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e7a767732e4cbcfc7d12bb12e8395e133e8711de9c90d9c1d804c086d1ca4f1. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/USWD11366296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4930017494071e60829bb2dcfb6460f720ae4e4ff4b492900790d2527f297e9. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USWD11366300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a1991b0ac5d04f1e2e582aa404c197cbf7a5d0fac6d29aa0df2b846c4d3adb5. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/USWD11366312.
Disney Junior Music: Doc McStuffins - The Doc Is In Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56262db1c884ea75c84f50e6c505783a6ab2640bcfaaa459dd0d998e26feac5e. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USWD12097274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6cb791e54854a255ba4ad3540241ebb9c1bc566f9fbb4a1e0f7c4c3ee7e4377. 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/USWD12097269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc538dc619aa71c3e7373a60959160001e954f44fa078a38c6606aae57ef1101. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USWD12097267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1977f604e856ab157646288aa8f04e8121d09c69c2cacc4957ce9f0e0e1f66f8. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/USWD12097270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ec96f0df8416f82ae366ac1d6ade1fb3a2e05a0d19d82fe6d8a8ba0e93601ce. 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/USWD12097271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a90a406573320dafd871316728f8f6b27f2eaf46195d86653fd12f92993547f. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/USWD12097276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbd3c86e3dc983b7ff0a0d149c225458d9efe2e77ce8b98e7562bc080d669635. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/USWD12097273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09d232f6ea4716c125e85178d357c5e9ac0bc92ad2e219b762027e736ea6aea2. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/USWD12097282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc257dc2e69d281da398c41901e677796869a29e12d273aec11bb47b6d2ed169f. Chain 2 (Bitcoin): anchored in block 958506 (2026-07-18T06:14:51Z), 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/USWD12097275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c500364808097536cd2e0eb97b04d6279844cbc1d990e9e4d40af1f107ed89f. 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/USWD12097278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3dd1e1c585d93c241b36af17d0c2b2a1e546d91dd20294ba23a38f3afd8cce0. 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/USWD12097279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x687b481a791d418a4e12d0d222dde47bae3be75522429e24c41ee76362c022e4. 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/USWD12097280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa75fdf06806c089eac1592ce1e94bebfbf46139c1c85b686d562c96436591a83. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/USWD12097281.
The Doc Is 10 (From "Disney Junior Music: Doc McStuffins")
Disney Junior Music: Doc McStuffins - The Doc and Bella Are In!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda36c08e725ee6f888bfa9c804b34679a01b08ef187065b2b8b403211369b9b1. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USWD12328306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf706746c9c606578513737fc51d19ad099d1267f304746ec265ae9298d9968a3. 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/USWD12328307.
Disney Junior Music: Halloween Hits Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3180dc806be7d32bb8dba93c14fe07bbc6a92de31274d7711e22b48463fe0f8a. 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/USWD12112508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2be666824fa311f4aa69a81c994708e78a368da690fa7c2171173effa256235. 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/USWD12112512.