We Are The Grand is a Chilean band and indie rock musical quartet. The group was formed in 2009 by Sebastián Gallardo (vocalist, guitar), Fernando Lamas (guitar), Benjamín Galdames (bass) and Matías P
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 0x5308570b0e0b53f21b91f538f01ce134b0826e41d9666bae41e8b84b3b953cdb. 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/cef92f32-2e60-4ac1-9d03-e01fa7bf44b4.json and https://artists.proofprofile.net/proofs/artist/cef92f32-2e60-4ac1-9d03-e01fa7bf44b4.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 0xa3f19a26b9df0fbdfbb9acc635034f718004c10608ef1843490459808121e8df. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/CLEA21500543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb15b7b942e57f0630959d05a9d2fb37c6a378b00b06bf0416fc0ef6b790695ed. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/CLDE21301141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09410b485471f6634ea3cbbaaa9362ae4c6f8cc569c3c656b96c6fcb8256aa79. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/CLDE21301142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99e306570c4a47920b730efd8a3d790239e1180a878b980a33e0a2454599b786. 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/CLDE21301143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc437fd8f033c00b7785701dd148fe68563e59b5a31f3031c36a94cf89b927b41. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/CLDE21301144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9674315acf7d9eb2a0ec3212b1b2c9b00c6ecfb7fa8ddde2533d9195981eb4e8. 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/CLDE21301145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedadd24377f330b11a80338d12ecd014526fbf9b2a7644bc1dae37914a136b1e. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/CLDE21301146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb781db7453147c18ae020050fc60535e16edf01f6a572745d2946d76b3b3a972. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/CLDE21301148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb51a23d935ef0ebd8941b5a291060e4d3a5597f65e5fbec224fa9aee2b839a7. Chain 2 (Bitcoin): anchored in block 957876 (2026-07-13T16:00:32Z), 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/CLEA21500472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b35eb5e4e8ad91a7d21dfd50b5c835f7369737c66d159b718ef2f80ac959a7d. 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/CLEA21500477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bf24e37a7509e4f9b450ecce9b62c7da86b279177be77785b7d0b9074f41b69. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T11:10:14Z), 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/CLEA21500479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfafb08a3f0be56010281c094f485921d8bb276f89718f104f582a1db3b833d9f. Chain 2 (Bitcoin): anchored in block 958493 (2026-07-18T04:34:53Z), 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/CLEA21500480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dd1a0a7ca1377c2ea30a6635ff37419eb159cdc28d0477d41494b8e2937298b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/CLEA21700673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dd1a0a7ca1377c2ea30a6635ff37419eb159cdc28d0477d41494b8e2937298b. 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/CLEA21700673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x614447d30044c606e3de323e57adc4e7f1a465b2fc5e5939a7c739be7a9fadf2. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/CLEA21800801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cdd939598ea21115c59f69a29c2a12829007b1777a32031362a429c054ee315. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/CLEA21800802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4391f7062776bc524b51f9aa181e6b52cabf5fecc9f7e905752331c9152b7237. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/CLEA21800806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf4602b4af438b0cb4f38e55f3976f836cc8f7e78cc51ceb4eafcaca8bfe6bac. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), 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/CLEA21800807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2306edfbcc98e14557488aeaf715fcfd906c720f9b9b2af0397481ec8cbf5e1. 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/CLEA21800804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb932785449f5a351ea971e3f5ec20fbc36e68d57fd3c3aaf7147565932eb9edb. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/CLEA21800805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e6ec6501269323c2a0ee1966245bf23d7b6e858e6bd72f132348a9aaf7390bb. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/CLEA21800808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c0dd4669199734a9b831b6cca369672ab5558fc29fe017de8c3c5822c1b672f. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/CLEA21800809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb08249c416a9296cdcc09c0f5875f162e5ba2320ca58a8ea96679ada0b7cdfb1. 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/CLEA21800810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00e48a2ba8007a9dd0294cb610dbd1cb75f48b038037f848075c8dba5989a113. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:26:01Z), 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/CLEA21800812.
Mi Casa en el Árbol: Tributo a Jorge González
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6d91b26bc6f4fcee3762558a4624be7302b6983573aa6a803ff8efe1de97313. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZHZ62022294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6d91b26bc6f4fcee3762558a4624be7302b6983573aa6a803ff8efe1de97313. 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/QZHZ62022294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6355678f94b7137000b663586aa28ee99906ac3bec3093aaa3496d57292797a. 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/QZNJV2071847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdf7d6cff8157ff47cb595568eba6bb77780c2e18bcd5c686a6c9279145526c8. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T11:41:12Z), 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/ES71G2248781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9b9b0ddbf1873a1110855576ccffdbf536fe5e96be4d8867f15638ef19de679. 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/ES71G2317892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08a13f72413755239cba15921be64be3dc1695923c5bdd1f7a290ed4320868c5. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T11:04:55Z), 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/QZNJX2139701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb605bfc5ca8674a91dbbf066146ad6ea67b636e668e3884dd3d2dda51c5793af. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZGLS2255685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdf7d6cff8157ff47cb595568eba6bb77780c2e18bcd5c686a6c9279145526c8. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/ES71G2248781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3444feb671e6eec39e73c796703b1a8536f0bf36d7b75acc5e5a4a87aced08f5. Chain 2 (Bitcoin): anchored in block 958720 (2026-07-19T10:53:46Z), 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/ES71G2337904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aa076d70dea90133ee65f6afce3ce8a9dc68ec729b013b937cd781e6cc8aa75. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/ES71G2402759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcca806cc335171d48e7fd9c1896dabc2d611dcede758ba7a2c68d8bb98fc5ea7. Chain 2 (Bitcoin): anchored in block 957876 (2026-07-13T16:00:32Z), 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/ES71G2407690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f5e008309b6cfa51bd805c4922bc39c6fd3f18b12335f7f12817f8d4d176840. 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/ES71G2408241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9973baf3f8d9e7099a32809089be9f6dc7b266a596801cbf11f381a6cc17979. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/ES71G2408243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23b64e169b67f7ae590bdc3693da11a26c272029b47e526ca43f40fe946116ac. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/ES71G2408244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd33e8461d31d6b92d30fafd3af7c090bde279657a4c4f4cbc1c1044cf023db53. 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/ES71G2408240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aa076d70dea90133ee65f6afce3ce8a9dc68ec729b013b937cd781e6cc8aa75. 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/ES71G2402759.