Montana ( ) is a landlocked state in the Mountain West subregion of the Western United States. It is bordered by Idaho to the west, North Dakota to the east, South Dakota to the southeast, Wyoming to
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 0x5d1f3a52ba55516495ba59f73af548612b1aa8ccdbcd2bb6908461e50def1113. 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/b2f4a1f9-6733-4e65-9a93-0c055fa950e9.json and https://artists.proofprofile.net/proofs/artist/b2f4a1f9-6733-4e65-9a93-0c055fa950e9.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 0x8dd7d2855005f727c8e49ea5484a7b204789068b9f9719952d279f53a8a2c4db. 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/QZDQH2376066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75886b5bb66ccebba68e02002c6ef820680a7b8519180c447b0a6ce4a78634a1. 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/QZDQH2376626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x668bb37f153451a074a31387a8a4f61ff4d1ecf32845a0fa7a18fe9ee383692d. 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/QZDQH2386892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a838f769050c682cb0728bdb7c469a7350e837a5210c43afe976b0056eb5ab1. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZDQH2390850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26a6d98d7b3085badfd0a3765b109f3ec1c5e9860d03b8a03a9edf75ed504c1d. 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/QMANG2263428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4620b00f09aaf196afe871ae813c52e546d17c4eb002bdbeee62436ec78019e. 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/US3DF2410999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46565738269cb61cf1d5239d893a07de425cda3c4e028ee565f7736ac853d71a. 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/MXA411400194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d831671f5aae8d898a38b98936d8d307074df89c347c322628118d8c1e4e479. 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/QZDQH2396761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb7a4fa1ee637c04bdc783a789dbde02359544f70ad62a52c47ccca4d832e1b2. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/MXA411400198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f5574bdf8d66bd5a8b9edd92166877438223365321192bf75550bf87af5782b. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/MXA421400196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdaa34a51160a32452ff0894a9d8170c44997f752157cdc3a8a73bd64aaed4c3. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/MXA411400189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17892f48d4bcac9015626de1f4a5babf76cb2f4ca1a9b06d65c0ac60a919d382. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/MXA411400200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a0c0db11c845e9620a7cb89924e4107398a38928342abc2a2e777eb73925f71. 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/MXA411400203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a89e5d4a5590e8c024007e2492c8c84549a26d2da40f927cf9121402a30b7a2. 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/MXA411400202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb093c0336f898cee7e9e16b6be8b4065465a7a499ef1651c04d0446d1743ae54. 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/MXA411400193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf96e5cec50f39646cf3457e78baa89750e7a415607420fd71afb60d12edfbbf7. 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/QZDQH2439249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27639c3b53d2ef2042c51fd2638d5cb9a7aed13b4511f4eec50efa5d3ed22f06. 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/QZDQH2439251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f832df579d48b19d1fb9cd1eb4471c74004ac46478a2581cfabb69a172cf532. 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/QZDQH2439253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6fc2ff2194a957a859c828d3b82a9aab4f23a084a05dae5542fc7098e85cfb3. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QMRSZ2500754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2afcd7cb31e1790785f947079c0d54364cfd9fc31e8aca1dd61b200e4136bb42. 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/QZDQH2428363.
Los De Los Veintes - feat. Abraham Vazquez
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99a8ecfeafbf2fccdbec23df21134891195560d427ee58ce2fdf29c946e2dacb. 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/QZDQH2431454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4d7df2739e23651293b607051cdf376ed041c20b078a1a73573ee59e9a9f287. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZDQH2433243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bc7d3d18bda69fb22f7e9b7114f66f6e61e67ec80b49194fc2b41e66a10ba93. 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/QMRSZ2500755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfae8c05cc588f553a8bc018da3081b388b6a79b5873e5f49bad70fc25078cac7. 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/QMRSZ2500756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9820d59954da686e468ae84145efe3f18eec57ccbfb795c570c76549f6bf3b30. 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/QMRSZ2500256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89e18a6a650981d2462877e71f91fac5c23d4d3dcc90ea2b2033551d2c6407a3. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QMRSZ2500757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x679b7b39d6ea2cef7dbc2db62984b2eb05bf6f83671d78d3c369514fce360297. 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/QMRSZ2500758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4803baf0f978440b2ec439fc3d0dfc6c8a06b09a3df8cbd9543146338d646dc6. 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/QZDQH2438274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8b2672ce3704c12a7c8f5dd0d552b1102924aa9b5ac1d425fd633da47631ccc. 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/QMRSZ2500759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3d496dd72300c7e2f0bb0fb728bec808174abd14a3cfb7f7b5a494bdb975a24. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QMRSZ2500760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9820d59954da686e468ae84145efe3f18eec57ccbfb795c570c76549f6bf3b30. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QMRSZ2500256.
Los De Los Veintes (feat. Abraham Vazquez)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99a8ecfeafbf2fccdbec23df21134891195560d427ee58ce2fdf29c946e2dacb. 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/QZDQH2431454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67739341a6be1de853fdd8f61923dd1bc495a54b8e16b3a3d1c9aa43ee26fb1e. 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/QZDQH2422633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13b2f9ed97b62f8059e36eeca3506918220482105f16b366df1cc9ce462fea4a. 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/USANG2413121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeff9eb7a8a7971f45a860f178196c624db1c2d783634d241b029ccae623b515. 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/USANG2413136.
Jorge Santacruz Y Su Grupo Quinto Elemento
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e9ece94ec4389a1c559de48e525e443b6df819ba642f24580325e37bd4d3670. 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/USANG2413137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47df456df920ef8182c0d3509f65ffbd0352457e797fd457758e15d34510d171. 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/USANG2413138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x291e8934fa8441be181930053b0fc9a200c4f2025f78b2982a2e1bd9b6f622f6. 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/USANG2413141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x901bcda87f86a223aa241f9fa2fa2da2235655670814c18e9b35c4181e5fc47c. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USANG2413148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46565738269cb61cf1d5239d893a07de425cda3c4e028ee565f7736ac853d71a. 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/MXA411400194.