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 0x57c29057ae6ee89aaedece4cbeff3758ec1f0a33cd764989a938fac2a8a0c268. 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/78a8fa9d-8de5-41dc-9c1d-2d219afc1957.json and https://artists.proofprofile.net/proofs/artist/78a8fa9d-8de5-41dc-9c1d-2d219afc1957.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Fights to the Death (from "SIFU: It Takes a Life")
There Is Only War / Chapel - from "Warhammer 40,000: And They Shall Know No Fear"
Secret Level: Season 1, Volume 1.1 (Prime Video Original Series Soundtrack)
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 0x2c153bd5a0d98aac84e58ff1bea013f7fb4e0d97cfa99b9d9824e3b4ad944d29. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USQX92407437.
Cultist Battle - from "Warhammer 40,000: And They Shall Know No Fear"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb55d6a6c55ea7141951e926c65ab7a5d88f7ee60c98990af2425fca434c1f54d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USQX92407438.
Descent - from "Warhammer 40,000: And They Shall Know No Fear"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05aaf8c5fd83e22a7baef23745dec1b2c8ba9c3e60d55ba3cd7aa193721cb8a0. 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/USQX92407439.
Die Well, Brothers - from "Warhammer 40,000: And They Shall Know No Fear"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f6b0bfb1750f48a0c3a793b94771e1c2da077e222d1e667fa5cdfaf4f3502fd. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USQX92407440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf91996b9575219d5d1ab2e242d72877119b7e02c54ecacfb25b7645e05cad4e3. 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/USQX92407441.
Amos and Felicity - from "The Outer Worlds: The Company We Keep"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec2710e67dccb5e027d61d32986149a142bd8758566e1e836a8f6b98e23a0cab. 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/USQX92407442.
Experiments - from "The Outer Worlds: The Company We Keep"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37026fda23a88823bbeb6ed66456334d0848fbb90169c1508400e896c1226637. 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/USQX92407443.
Not a Bad Person - from "The Outer Worlds: The Company We Keep"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf58e28aba78871894138df34763a00ea33c1b8583467bcabf1407aed155fc821. 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/USQX92407444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2008f7467af925c07f8737edc90fb74bd84150723eed83696a3ca4f543fd85fa. 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/USQX92407448.
I Remember - from "Playtime: Fulfillment"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd36b5079d8a7e14040501e034423805197ad908dc31e7c1756a460c5dfb4c9f0. 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/USQX92407450.
Mainline Glasslands / Battle - from "Armored Core: Asset Management"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd07d310383ad15c505e957791b0306c393c69c6982e40f679b3e5e82fabb59b2. 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/USQX92407451.
F These Guys - from "Armored Core: Asset Management"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3840e60d9d56d5cabe7f8c70543d96d87ada3ca8746aa3a068b0f9995bc02699. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USQX92407452.
They're Your People - from "Armored Core: Asset Management"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28a649db02f0372ee22fd034004a2976a4c3eb544f2fddfbf3c5769845195a1d. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USQX92407453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b65755cbe7791fcbfecd8a895871b4c48c7add7ed9120a1db0cb8c787d2f5bd. 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/USQX92407454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf06e45f049df4ead1c2952050c9daf79d0040d10d459ed32403e9a0cf3c0219b. 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/USQX92407455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce5c13c66d7e98ff14cae8adf1ac26f5e320cbeee57b97115613c8a0d3907ccc. 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/USQX92407456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5f36a4d0b7d17e36e61522f9bbe2986dfbbe3b019c420c29cc9e294cb14dc7a. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USQX92407458.