A floor is the bottom surface of a room or vehicle. Floors vary from simple dirt in a cave to many layered surfaces made with modern technology. Floors may be stone, wood, bamboo, metal, or any other
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 0xceb01b74a0b28736f17541944c6d996ef3acf6a69ef45cc7a37fc00b402e3459. 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/9949e7f5-8ef2-4c56-a135-f93b46d883c1.json and https://artists.proofprofile.net/proofs/artist/9949e7f5-8ef2-4c56-a135-f93b46d883c1.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 0x7b395daaff7eadc875ad9795d15de742b8e15c8f02584946efa77741e67af45c. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/US4R71010068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aa0f34bbacba79689932a856e7ed0fefe619eca292cf4057ca1885b38044d2e. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/US4R71010069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d5a38d9885fddab8415c93e52e3305406c3b1a042caf75a7a27003ce6032708. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:49:19Z), 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/US4R71010070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7353566a2dd4093fe971bbe9ce6698e55d5dea49bd96c8f110d1cd538a5697d8. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/US4R71010071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23e0eed901f898bc9b27976aba122999804823e55472cf085a74b97f61c52181. 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/US4R71010072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d81cdb117c331e639045faefa27c437198958abb75fb856ca3061c290ecb093. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T17:58:32Z), 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/US4R71010074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb09c47781d4001aef7ed5305562e636a6bac89acaa3c92286c7b28b6114409f3. 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/US4R71010075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2d3f9fe580f6040b55c80ab52f6b1445d7e5edbfdf78780ab896cb722b59eaf. 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/US4R71010076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x698b6cc6b2ed55a8c8500bc673544beba170fc066ddb43b9f35bbe864272a7f0. 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/US4R71010077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97d5e226390140bd916bffa22f32c4d4e2f0006396ed3770aa09e8847de7e960. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/US4R71010078.
Xian (The Jingle-Jangle Of A Thousand Lost Souls)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceef56be09c1eb45ebd524e71d70d30889c0ac972d992add98b669440c3cc81a. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T17:30:35Z), 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/US4R71010081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b4a104f3b5ec3f7a6ac430ddcf93ea0077659d1a4aae761105b4bd139152c2c. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/FR33T1432602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17fa7c452055b12391e4039fb6eccc14fe42d3faee120cf79af2512149b98678. 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/FR33T1432603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c2193d3b1ace90b6127553b5b0fb2e7fd82a2a187f30002a4c64943c38d114d. 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/FR33T1432604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f46d3d3418cbe193b4695fa781dab41514ef63206bb55eacc50a3ffa7511d7c. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T05:14:26Z), 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/FR33T1432606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa13a3370120d64175d471028f6d0c9dbcdac6a0703b7bb6251edbfcec3b755c3. 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/FR33T1432607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c8ea1a2c7d3a3d51d3515487a9433d11c0902b544f1963de6e13a505cc0c3e5. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:59:33Z), 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/FR33T1432616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1b02e38f1ae279213629785dbc2a05a6f23572f857908d6a94310af12446674. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/FR33T1432617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ef4db7bfa7628840d4554e4066c0f364300dd0e0177741b464951c16f2f91f7. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEBL60843574.