Por Vida (, ) is the debut EP by Colombian-American singer Kali Uchis. The project was released as a free download on February 4, 2015, via Kali Uchis' website and later released to digital streaming
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 0x3361ecc0e8f61bd04253eb61b693c54fcec0af60494c2b153505d37346ecbd00. 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/62029c2a-d6d5-416a-9182-b22c2c57b469.json and https://artists.proofprofile.net/proofs/artist/62029c2a-d6d5-416a-9182-b22c2c57b469.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 0xd8deb36b049657a732e4f710ae93e7fb9b972f3c835e2fa3636a0e99b7c0d749. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZES82047076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d112cdfdf7ccea22a8a19ef06560d2731370562366408935a0e00e0aa9d664b. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/QZRP42112497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff5e0497874143ec4ea2b928b0717af10eec14cf6d39c8e0f280fe8d0676131b. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:54:02Z), 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/QZRP42112501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0088378f5de1787e928b6762077f629444c5b76d4eb125aeadbc5adf499d576a. Chain 2 (Bitcoin): anchored in block 958722 (2026-07-19T11:03:50Z), 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/QZRP42112502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23a6a19be56ff4404df6a1a41c72d1b6cd31b157ae1d35952db4cc53df7d6294. 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/QZHN52239099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61b88bc4c75c28e0a42dec6065f3a2b14c4b0b1d2196ee2bec24f58b1aa194ca. 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/QM24S2206507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69fe09ec1040662b4eca14355b05c0b7dcca1cc0a7364ffb4984acc725e7b12a. 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/QZTB62236820.
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 0xd1ef6bcb4d39661de82296a3b423c1364d16ecc5ee8dddaae7d5762b565824f7. 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/QZK6F2491824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ab4bd6a8960eb072a215c1e8a8a56a199379f21a76a926941a5b1dc74d6c742. Chain 2 (Bitcoin): anchored in block 960276 (2026-07-30T16:01:17Z), 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/QZK6F2491820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa41776bf1ffbc77b55354c6d0259649ec02ccbd04f9355e69194ed9f6d952de2. 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/QZK6F2491821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fabe84e8bd66326f95924361c08ecec7205be95a6ed2ddcce5cfed177e9da87. 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/QZK6F2491822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d0a28fc5f88a33389bcc5564ef733139684fa54de2253a2f7e5ca0bd7d69431. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/QZK6F2491823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37197c0533fab053781971b79e05970f98bc0b01c8517500e2b41563527bde54. 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/QZK6F2491827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62414dda0c3e61d668e60cb603bd0e6db6074369774f9971966b936711d652c7. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/QZK6F2491828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x271c9529d2f640173b8509dfa9085237b25f35fa986b0d98bfddd0bc4e90d0c3. 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/QZK6F2491832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x134ab5ab1c13edc051f3d0b8755b5fa9853c206040100d1b19b753a6309801f0. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/QZK6N2479445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2612adea3a0d20773624500372ae6a20c8c6c6b55916c91328f3ce0fd438d703. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/QT2VB2509877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee45181e5e646d3da12dd46dd4a11a6830e2f9d4ef8ca3c70d624c29c013f75c. 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/QT2VB2509879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3805767ff3a55c962043cf9251a5ba1111f007789ab142c22bec98cd978ceebb. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QT2VB2509886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7afa6e15630c122cf2836e89b9b8c802aecff8e8ab8b38136d7d7f85df57b6fc. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZTAS2518039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2636fe99cfdd3c34ddf75a728a040f9f062edb9a879659dfb66aa48d0e220f8. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:38:42Z), 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/QZTB62588930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x475a60c49f1da1294e60d8168cc64f8f3a9aecbcbde0cc3c0a9b5d875ed99a41. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T22:10:16Z), 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/QZZ7M2582897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd479637ce4a5503041f1bcc202bfbcc867de0ac7c96814d5d89600610678d658. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:09:47Z), 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/QZZ7M2582898.