Yellows may refer to: Shades of yellow Yellow Butterflies Coliadinae Clouded yellows, a common name for Colias, a genus of butterflies Grass yellows, a common name for Eurema, a genus of butter
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 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 0x1ecbc0a440a93ee0b15facc6e4aa8da6550cbf06d4d037ee7ee2a8bd0cd6f61f. 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/4bda7010-82da-4882-810e-674a7901b05c.json and https://artists.proofprofile.net/proofs/artist/4bda7010-82da-4882-810e-674a7901b05c.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 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 0x4108b73585896441322036d1d31b0f63bb7e938bd7d3079f2e63878b0bc57b97. 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/TCAIY2449660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x852fb63fe149831ff230c6c434bd3227c93568f6dfa460841cafb79afb33c6a5. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/TCAIZ2434845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5caf851896503624967fa8e5de1954b338e15eec580e99fdc2870b9a91e7e46b. 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/TCAIZ2434917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x393dacf47f1ea1df4bcd1d75eba121447ae70dcedea2e4c8db90ae7640fd5969. Chain 2 (Bitcoin): anchored in block 958506 (2026-07-18T06:14:51Z), 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/TCAJG2547442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5e7f794138de61ce63e912316a352896f193b11b06e04564dd9105b72ec6fde. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/TCAJG2547516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58cab1f57a6042067a3b49bbe5839065182f95382e5859915bbd1a848c4c44f0. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T01:47:42Z), 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/TCAJG2547493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x393dacf47f1ea1df4bcd1d75eba121447ae70dcedea2e4c8db90ae7640fd5969. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), 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/TCAJG2547442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x852fb63fe149831ff230c6c434bd3227c93568f6dfa460841cafb79afb33c6a5. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/TCAIZ2434845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51b1548692c30197c777fb730a122f5786f230da75e860166e87beab3cf1ca4a. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/TCAJG2547471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd9116734143edd4cb95474ae923c79009778c423307afe019acb20bd99cbb0d. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/TCAJB2474602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5e7f794138de61ce63e912316a352896f193b11b06e04564dd9105b72ec6fde. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/TCAJG2547516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d91cf80a7d76ab67c8d5f743b03be97a1cfa57193594384cf4972257b55d19f. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T08:56:51Z), 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/TCAIZ2434988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4108b73585896441322036d1d31b0f63bb7e938bd7d3079f2e63878b0bc57b97. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/TCAIY2449660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5caf851896503624967fa8e5de1954b338e15eec580e99fdc2870b9a91e7e46b. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/TCAIZ2434917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dd8ebbf0f1a91346d07d6a2251d04200c6c632acf03a1fdfb41d89f2f21eb4f. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/TCAJQ2580540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75d486844164038931cdbe7c888ab735e7a8959f46705875bba2a65ef0f0e933. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/TCAJR2580548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e423fe1d68ae9c34204e7b990bd0f7634fa740916c9e2306234f3757371b562. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/TCAJQ2580550.