"Las Mañanitas" is a traditional MexicanLas Mananitas for Guadalupe. John Rieping. The Madera Tribune. Madera, California. 6 September 2013 . Retrieved 18 March 2014. birthday song written by Mexica
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 0xf8e55f0f85d2fa5cf85b1cbee2b91dcda45a79ca158cd51a5ecc9aef7c5a491e. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8adcda87-c2e1-49be-9397-df95a5177702.json and https://artists.proofprofile.net/proofs/artist/8adcda87-c2e1-49be-9397-df95a5177702.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 0xbe08dada0f00810d75392683988aae69c5303d9219f5b523f173fc8952fa1895. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/USRMK3020001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x001ad14282baaedc5ee349810b3652874182ec4cc0a28abf7069e6fdecd1168a. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USRMK3020002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4995ec32aac891acf7ee9170ba40045ff3029a41958aa5f92121857f0fb0bdf7. 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/USRMK3020003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1ec88fb90cb587f299dd9a214396fbd2f4787a2efad6176c05147b6d2fe288d. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/USRMK3020010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd0959a52563aa5e28c660d98c70e782241aaca20cd56ff23e4961ef9f4c944e. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/USLZJ1457138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef58411e01216bd395286c11027e09eca9dc27b80147c0ffee61e242b2dae4c2. 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/TCACO1613248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdd07ad475ab765dbf5618fc255f95a860de11bbce1a102191a37db2d5272bad. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:05:09Z), 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/TCACO1613250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf09eebad730747b15772deb6d6f5668558d216625e46c01919c7237e61ff6896. 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/CA5KR1710968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b5b9dc3712a7683921770f63f9191874c42b5c6b9a9643d766ea558227847b1. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:59:04Z), 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/CA5KR2176963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78042e75eb8835d75106806621138f6ff3b9e52ac585409f216dc4efa4ff9854. 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/CA5KR0037503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56b328d5809b776a4a98e9663dee84cdaa530495d851185a0bbe1c39aaba5a7f. 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/CA5KR0037504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe917da9403f632070594f5dd1d3ca60254b1e9d7f0aa83539ff5983913869561. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:21:58Z), 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/CA5KR0037506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c3db5b45390022e56f44f8b75718c0d960fe20b768ab59f52abfd4f9f4b8238. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/CA5KR0037507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3634754964dd0ede5318f37ca3b74a6fcf519737ded01f9317bdc3d17455498c. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/CA5KR0037508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06a0dd5f9534d699f695ca69f3df92c90eb15cce6c61bd139d1f85d335a6c3be. 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/CA5KR0037509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53831c0cdb6695cbd3995a644a15808c7e1cf06f6f880995156f30bfb0ebf3a2. 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/CA5KR0037511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cf9126c231fa02dd6537b50a704ec738c6e15f46d5cf4ba366843d4e8eea31d. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/CA5KR0037513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43e6f30f1c2a4463876607b1d415249817c3b65821413e9531034d2e6ead8a7a. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/CA5KR2302217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15bb6688e87d3fb16ba676aa01895aa95b8859fe31a10308873a3a04b4563b4d. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/CA5KR2360563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc69e9997603caaef04cb61e14ee82b7e1c3968122be84496728df0e56c2f42f. 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/CA5KR2360571.