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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e6ba99ddc1928a1563d7824578e510166e4f17ab9990778e0dc2eecd74085c5. 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/df6a6d3a-20a5-40f2-a742-6c2635e8684d.json and https://artists.proofprofile.net/proofs/artist/df6a6d3a-20a5-40f2-a742-6c2635e8684d.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53cf753fd750891dd01a5b923f5ffffe60ad9f19cfc42807ffc2d17ff6c6aeaf. Chain 2 (Bitcoin): anchored in block 958988 (2026-07-21T09:08:06Z), 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/QZEKE2026833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34c777a27a2b7d83559391436f8e09226be6a5f2d8aabbc6495b67d1be65e0c2. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/KRA031205365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d8f864854ae1a749249530baeac975b66fb119ff4abfcd34890a00ab57c1477. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/KRA031205366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98476e49d3f7613829c9dc9b40da603b5304d0b63366f190643ba1a4ab33b5a9. 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/KRA031205367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbb1179eafcda9cc655fa80ea1143951a8a940e1c044166838afa01e82fe762b. 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/KRA341309306.
Hotel King, Pt. 4 (Original Television Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeda0f6b7d833a7adbf6391b479ae48b3069f69f6681b6ed41f95a55edb14558. 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/KRA341428556.
쇼파르뮤직 컴필레이션 Vol.1 (R-e Make And W-e Make)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3a679b4e01136284f89afcc8bfc4d9b060c66fad61bed8e0c42444ceb5f2f82. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/KRA341518147.
Bubble Gum (Original Television Soundtrack), Pt. 5
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadf8447f7ef622b7ec1d892f1e912dc06b5d595d1c87647e67e9f6ea62bdc7c1. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/KRA491501040.
Cheese in the Trap (Original Television Soundtrack), Pt. 4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd750660881d3355bb9a9ccf1c22a5d0c4ea9c97d99dec7bd6d87dcb437321d2b. 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/KRA491600041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdcb2da32b03268d0c988f4d501db72f07718c6ff389bd09510a3809ca29d5c8. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:12:35Z), 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/KRA491600044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd97c9a55e486f6e205d91c64ed6d8d101f35b61cbc047cbbfbadc2b0e7234711. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/KRA921600006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fab34663c10892bd12d8f0574817e977641e6f3c0a25eeb32e992572b009401. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T18:38:20Z), 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/KRA921600014.
Drinking Solo, Pt. 4 (Original Television Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e5acc3d948050675882e02802ca618ca26040a98a8015a1a0f3c0540c7c6e95. 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/KRA491600641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25c815136b84026d7b7d4eebdc8e963413c6df38cc1f2e3e8edc8ac03be7f145. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T15:31:18Z), 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/KRA491600642.
Drinking Solo (Original Television Soundtrack), Pt. 4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b03943ab3c7b121a617ec5e02473f9aeb1471eea8a24d2580518a70f6670456. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T11:09:45Z), 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/KRA381700360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4297fda4558fc75eb95638669d62c8d85d5acb5afaa6023037be67bcb0476d6. 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/KRA381704872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2483905ca807508c8a02f46c9063c49f059f7339905e91992bcea088795d440d. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T11:09:48Z), 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/KRA381704874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3127bf391237a96667abc71e6a311189b7d4e74e29d3cbdb930471e66fadc86. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/KRA381704875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x322fea3ea03fa7cee9e147d9401006d6f0bf981b01498349b25139fb933bb05f. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/KRA381704879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1153a962d81b2cc16c9e14367d136e8459807588570b3fc6879dc7ef9a9026ee. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T16:04:34Z), 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/KRA381801733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43d28fc835e61bdca9f5d7df7f9fa24a86fd0155b97fae2f78e0d876b3859336. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QZF452010548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dbb1244bb2b78e54fcc9e0f87f910e0deee98f608c42226b45e4e5202547094. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:48:05Z), 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/QZF452038018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x256ab94b5ff1214cf0f6a3e559838b6d79e41e4d56c6b2764d1aa26fd4b6e270. 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/KSA012106807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ea0833080dc4af115bc0c3ea66dc3f048f97f97931a357c55e51b0aed93bf0f. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/KSA012106809.