Taiga or tayga ( ; , ), also known as boreal forest or snow forest, is a biome characterized by coniferous forests consisting mostly of pines, spruces, and larches. The taiga, or boreal forest, is t
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 0x1b2a2455b71c892751ca3c19a0310478a19207ca4886086ef9a3053953781cdb. 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/d90cb3e0-3942-45f5-b6a4-970f8727b1c3.json and https://artists.proofprofile.net/proofs/artist/d90cb3e0-3942-45f5-b6a4-970f8727b1c3.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 0xd579d9652f543c3a52217ac1754ac20b869b89bf89f03e755aa4d99441c96788. 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/FI73H1700023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9405c89ee352171bd282ad5df17fa08836d979177f3ef8991083360f7490775. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FI73H1700026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ad52ad84086449147b382a02b1e4d84bd92a2b2946ffb4ffe4c0dbfa356fdaa. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/FI73H1700020.
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 0x1d2e4d0950d2fd7a3298893745cf1fbef2517967a02ee6064b5dbf644fc8ef63. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/FI73H1700024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c11fe1b37a74149d11a7cb040b8b9234c6deeaa98a814594d042dc94c2b1ff2. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/FI73H1700025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d09e671e558628939d9e00f462a5bb849c2a6d05193203fb9661355a763c4db. 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/FI73H1600002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x077e9e076bc5edaefff3f0c3ee0a40eb78f51457f26d5c13d0a2a43130ae3447. 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/FI73H1600004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3a2256d4f1d0e8b926ee5d5229f98e77376be0a5403eaeb0e568a8c94f9800c. 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/FI73H1600005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbad93708c276346fe2c94a20519b2bdfb1e0668750c5690277e98e48c141dfc3. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FI73H1600006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4ca94d925deb2f271c721d2ab2ee675b16ac29f6be30e8d202aecf2b678cbdd. 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/FI73H1600007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f5fe7bddb976214ea3a2313afff5ce1f2886fbbe43882e728824488d153ed0c. 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/FI73H1600008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa422b001b0642f0d1fded708386c057d55939606cd955e378d544d5ed5432251. 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/FI73H1600010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x586de0653d8b9e2ea34fee64e614598ec2326b3dd5816a031b92e919da42443b. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FI73H1600011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68662e6640409fa318b79afbae2c3ab20c046d98529f966c74331bcb0d62e132. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/FI73H1600001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda99372127712f5b00fbdf33fc3275edec866e349f8879710a66cbd4b5031550. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/FI73H1600003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17e850e9e5b573a7224880a62e5a731de973eaef4e5521ee27b1f9ce7270926a. 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/FIJ3N2300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x749f1ad18b9a0e6885ba7acda2ff0a001b954845d7d2a4214a2081b06192d1bf. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FIJ3N2200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36e1941ae257098cfff24640eaeebaa9b5cfc72c2d22f1edf6d8533064fa72dc. 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/FI73H1800003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x763e590fbaad9d168c3aa40f032f2acb5f6bcbc0dd6f4085c5f8c48831f2c743. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FI73H2000030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa647e623ce0fad3989da2683002c45dee5b8131ef6c61652c6d606d7e8c5bbd9. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/FI73H2000033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18fcfc2f94bc0a3056f7f73d68eebf2571df7d74560d2d3251aa268bbf0f53b3. 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/FI73H2000037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0ba7ede56cf3b7eddf03115afb1c3654da5440e3740a6868eafe00a69dfb746. 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/FI73H2000038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc191f5057498c505161bed1456891636470ce0c01207bda23a4b7fc1b81e6cf7. 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/FI73H2000039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22f6a4ec13f809d2167c1529fc417fec90ec5d6ea7db4eb69e19811e47ea86a9. 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/FI73H2000040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47aec8d77947f2c075d2f606fc9288c071bd87e11c146211486c578f1dd39554. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FI73H2000044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8efb554a56645d979ea4bc1b0c7b4bb0d53eeb8e2371b30f27aff057a30f1f00. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FI73H2000047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b7184b3931496cab7b49c42611dacbdd945e2eef2b14e259b2a0e48f74cddc0. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/FI73H2000031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdf88758c6769666846403363ece03ca6ceab3abc01ce175e595cda55b9fe26a. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/FI73H2000032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36e0ad93715e9f54f2a21303e41245a456763ecb7c83a76a906cc4d7671be852. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/FI73H2000034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd2c47db41020ffc77f92000ed6a3b97334e02d4cab37c84c3cf7dd56f10cf11. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/FI73H2000041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d032f84c713ffd42f762bd2dd3216e8a942a10f3b3f695298c454e78f9c54c1. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/FI73H2000045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7de31e23daecbcc54924bd67c2f9979e64b6ba40ac28b61e1b6f4363508a1e9e. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/FI73H2000046.