Big Bear, also known as (; – 17 January 1888), was a powerful and popular Cree chief who played many pivotal roles in Canadian history. He was appointed to chief of his band at the age of 40 upon th
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 0x4634118817c43f09067a62186af1af8749281e5cb62b8c39164184f78bfe8141. 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/f7abe6a4-2e78-4177-81a2-a304083d7f60.json and https://artists.proofprofile.net/proofs/artist/f7abe6a4-2e78-4177-81a2-a304083d7f60.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 0xed68492ee4d86d18c650461f4c62dbdca2652b8910a8dd0933befaafdf2217ca. 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/JPM551000073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd822fd4e1bd2f3820ac5ad619b3222f2b54daf5e19eaea724619a2f650a903e8. 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/JPM551000075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9d3c4e7348ba985f42c242617778ec9e2608bbc07b6493ad67da7c9d51f496d. 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/JPM551000077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf85fd31bad2945a3aca44ba9d61107b44afc181f9dc998eeee845011b6c9e5d. 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/JPM551000022.
Happy Life ~Tattaichidono Konoshunnkannwo~
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x124cafa67f40389a76fd375f8382f5a3cc10bbf6ce9fbd4df76b5ef2ddc98a90. 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/JPY201404870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a90eb05ca6507cb2b0b97e15db99fb837db64ca24ef6c9ba702d9790f986982. 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/JPY201405131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c1dcda74b60527355dc20c48f060432722104b15c2f600fbc5f84c8d940d65e. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/JPY201405132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50ffd1dc9ad674fc980ad8163c3bcfcb3caffd61f2515760407d13b3b2d28a15. 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/JPY201404891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eabc10ea6e5417c2539be190cfd53fbfc78510724927b022122b3ec7bb54bba. 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/JPY201405135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1b92d26273274a06056b6caa444ef1d9acb2eb0d0b18fcc8cd6f727d5447b21. 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/JPY201405143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdb21cb5c7abedd8218c6d0d78035ebd83b4fe22ac8ed54d1db83d7be64a8867. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/JPY201405144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc957b3724aa265cff9e48a76875cf57d89924007d58fb777311bf0ad2a8d02d8. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/JPY201404956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0813a9c3e45af26e46d7a1fbb2e0afb1466d83afee07e65f4aaa81e63579d6e7. 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/JPPO01511655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2be39966925560ec96dbe8e61c1b31347e4d5d237c7859f0242a6c663c7e8ba1. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T15:33:47Z), 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/JPPO01147841.