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 0x8d36efdbb02774cb46cb4ed1653948594b4d52ff6f50b722ef8e4e3f5f4e709e. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d9622a63-9fee-4327-b253-efba8243f211.json and https://artists.proofprofile.net/proofs/artist/d9622a63-9fee-4327-b253-efba8243f211.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Guild Wars 2: Heart of Thorns (Original Game 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 → 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 0xa003fb05b8d23c015c07cebe5bfb85dab4bbb299d53f9d946e89ac091eecd819. 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/TCACK1549826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f0981912566191ad91a72fbc706735d97f32fe771a3f78bfff4022eaafec33e. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/TCACK1549829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03dc38cd657eecaa8cbcda42fcd3c25363f6d3867de6470cab2973077d1a7d46. 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/TCACK1549841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x763a4b8627053e06fe9a5e6a3f33fc8e144c1974a2fd6c6afc3da9238f9749aa. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/TCACK1549844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9186668b5cffa7b07079762b0a3d6ebfe993f6ea0b0a232a4a9889a6649b0287. 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/TCACK1549845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56222730b3d91d01d00887e4d3b81a0538cdb9e0b246e76f19ce9284a368e73a. 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/TCACK1549847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x442f9217eb09374c03db3621b8141a9dc453da16492e824cf914ce70c514742c. 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/TCACK1549849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb1ce59a4043ee6512213c81406a7fae2c19ab18e2dce472a1343f8cad6d8814. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T20:04:28Z), 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/TCACK1549853.
Living World Season 4, Episode 4 Teaser Trailer
Guild Wars 2: Living World Season 2 (Original Soundtrack)
Guild Wars 2: Living World Season 2 (Original Game Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8a3128823b01023c30787bafbc9aec5dffc8a15c72eb9a390aa8c7ad18eff9d. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:31:56Z), 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/TCAEK1921685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf59d2ade1f170c407f11d3bc75af8103d4ef834739c356543ea9ca51bbdb062. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T13:00:37Z), 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/TCAEK1921698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1623e371088afe3148924dfa274cc13814cc2f271e6ab4959d59c2ead747ce8. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/TCAEK1921703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacd46b769178a533178ea4b7fbfe1ef3dbfec9c8f7c7e5537263566ffce18421. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/TCAEK1921704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01fc778f7f54e7edd226edd68e12df8f70804e919cdbb71957ac8c9475021015. 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/TCAEK1921709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d82cba1d2a4e88a9371cdf7c1a4fb9f6856a6d6e1f7d23b7bdfec5ea8c8c567. 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/TCAEK1921716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50489a34a1e2dcc1b9b2c1929acda1d417d84709c7794743b357e67bf061a3d0. 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/TCAEK1921717.
Guild Wars 2: Living World Season 3 (Original Game Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21039cd3345b15242dc3c4c017f47cc74ce4a05556617bc1384ef7aa8af97dee. 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/TCAEK1921584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9c992b246193851386909e9d1cf7185d5fc2607dc3ab36b181ae73298596b46. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/TCAEK1921587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4f93f62960b7a3fdc14eaec667ef4f310bdbded237ff00aeae8337e1727b675. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/TCAEK1921605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ccbe4387ba46662754de0c1fc3a8d3b11e0dd1d3d734dc4e4e16b4ee60c5e0a. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/TCAEK1921607.
Guild Wars 2 - Diaphonous Diffraction Randomizer
Salt and Sacrifice (Original Video Game Soundtrack)
Guild Wars 2: End of Dragons (Original Game Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x041a2b8ad6bae26178b9c7c95b3cd273b912b3529ade8b70e1a9891843952fc0. 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/TCAGB2240420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a6a531ffac87de3b322d0e526a7df475d306ac84127f9b59dce0a8c4dc01bfa. 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/TCAGB2239946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc46bc12b22f6c520ea4187b9a889288acc551ef2a179e82cebfe4d74af4cb4d9. 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/TCAGB2239952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaef452254f888473f4ddcce923213b416dcc25bc2c212a6a04203c08f5b1254b. 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/TCAGB2239957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf292e5211c592bcb9a937fcd12ae155e2c919ee046c29cf47ba0c88209f564e. 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/TCAGB2239960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2dc0faf8b19c7c19d9643cdde38adb1d9e9279b9431fb3e30cb017b0a9aebec. 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/TCAGB2239976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5780359841c78275c5c9103d050b565a95e5498212b40df989d7f68ea0e4bcd2. 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/TCAGB2239992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe822995d22bf4dfc811295a778393a416c431f739e54928c5dd920b55500d458. 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/TCAGB2239995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00a301c4d52a6e3b711c76e6bafac9473772fa53fb2076b6bfa579b030af69d1. 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/TCAGB2240044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91805aed883ebd5c8483a1520305201c76890b394cae04fc45155cc572fff6f5. 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/TCAGB2240054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe97c148b224cb7f3d7eed27ac1e7c4dad782ed99d96749b6595ef3083d2e26b. 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/TCAGB2240062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bdd3ff08f968efb48c49b3ffb03ea4a2018a3b5ffa32b4fb6b366e96407f433. 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/TCAGB2240070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d7744ca9fa8ac2e0c15f6475ee4309bd2c76f01a5ba0b6c39d47e08e75612b7. 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/TCAGB2240088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f99294fd94eb0308f98a2c0787fcfc2658e0e4b2073460c05a9f16b13c799f0. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/TCAGB2240146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc86b50386f47fe136bd9730c9388d3ffc80df8d85cd4be34ba040a3d8aac0b12. 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/TCAGB2240218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabde807252a0fb723d63199d9d3eccfab0ad08d5f285484708e91d88afc5e045. 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/TCAGB2240223.