Maren may refer to: Maren (name) Maren, Netherlands Maren (energy management system) The Groovy Girls doll line, by Manhattan Toy, features a doll named Maren
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 0xdac2510c862ecbac7df511ef31a315a3d65b1d39a705087b33968f75ee043955. 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/973da3d5-4b6d-4c7f-8744-144a8c6ad47f.json and https://artists.proofprofile.net/proofs/artist/973da3d5-4b6d-4c7f-8744-144a8c6ad47f.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 0x1fa5fa87e54736f56b2205032d8fb129e72b59db7cd5c990642c18251bf3f6fa. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/QMDA61832081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3498a68bfa07cc59a6322686379d3f5f44073d207bfcc64f1a15544d1c3fcc36. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/ES71G2011253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa93c01d9910cf0a44841380b2bde5c455981126205e1557838854c1e64590309. 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/ES71G2017526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e3be017dcfc2eb10b2f8e801a9ee23300b0cb9127311f7f8b8469f7c5388123. 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/ES71G2050682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ad7587d0fa8ed2fdf33aa659a67923e2555071fecf4842c6ca1874280a5bc8f. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T02:40:38Z), 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/ES71G2115972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa93c01d9910cf0a44841380b2bde5c455981126205e1557838854c1e64590309. 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/ES71G2017526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62f6bd922767a3987769721c062225d92f58003b781f4d0675161cfdf4621ae6. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/ES71G2115973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aa4db469e1329cd7c563217130765174bf9a86ff7d77601e3f0fdfd497c84c4. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/ES71G2115975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa33b89f35bea8bb97b6d4736e75f75d6276b48d81c338df8051b72e22cd4328c. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/ES71G2147603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf5469c5d91d9d9a4605899f45a94fa3e4c0d0fb4bbb55eb98aee7ae47085c65. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T03:50:43Z), 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/ES71G2147604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d5bd6923206690cc923df171ac3898af52a0a3a3f3e64ae6490c3086ce7a207. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/ES71G2147605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7143d1678c18687ffa46bdc95ef2ecea2e567a0f0b04c459fb9fb169638d8039. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T00:07:05Z), 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/ES71G2147607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa667ffcedb6ff9f5e77fe57df970a1d6fd898d82fc099053583b25289d86051b. 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/ES71G2209554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa47339e3154f05b1f13538ea093f55d9bdcf2aae3370cf5b628721317dfce49a. 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/ES71G2222538.
Margaritas y Lavanda (Versión extendida)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c40ba8993d7dc9ebb20776fbd015814a281163926e4db50f3bb8bd7fe4480ce. 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/ES71G2319320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea9895e97f3e02a771aa40d381ac167c9237b80ff6fca2978b3ceee23ecf34e6. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/ES71G2400083.
Haría Lo Que Fuera (Menos Lo Que Tú Quieras)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc40ff344f04342f01896468584b378bbb8d8f9280e4233192a062fe980d0340c. 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/ES71G2406153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5612d4943dda28755c221f9c88ecade7a0c5cfe7131b2dcd0909713395f9ecac. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QZPLS2436680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc6530bc353e594936cfa8a6b117036ac6151bc6264b2c4f4049d1d1fa05c8af. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/ES71G2414755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64d26f41e74ee6adea3d0e8c7b4fa49f3f471d6730e931e88a301f616bc2183c. 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/ES71G2414753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea9895e97f3e02a771aa40d381ac167c9237b80ff6fca2978b3ceee23ecf34e6. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/ES71G2400083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3edc30dd51a24b6fda3661e607c149afcec023ff77cad19cccae387a61ccf6b. 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/ES71G2414756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc76056bc514b524fe974f435f90fe959e4f9f655dc3b7e2f85b78504c7892621. 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/ES71G2414757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2fcd719b2bbef3b5e37ac78fdbb79d4728426f6c95ca830024b858800d4aefd. 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/ES71G2304823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x867001e0882b22a710c5998b0292a77772514aaf7e0d72dc856ff6f906aa21b3. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T18:00:27Z), 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/ES71G2414758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbde0f51f9719deee211d0c4a6a2fbf9748d9df459def8a9be3b5ff53945fb62d. 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/ES65D2300015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9520a0ff0f2967df8486aee032331b5ca141a8aa50a48d4fefa8dfbadceece4. 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/TCAHQ2343051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbde0f51f9719deee211d0c4a6a2fbf9748d9df459def8a9be3b5ff53945fb62d. 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/ES65D2300015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79357161cc87ee02c005773d876d4e5dbd55f7c6f56c9fdd0097937a2380ed71. 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/ES71G2422556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16d141c368d5748fdeb7e9b2c65413f0f0dec8c22fd00c0415d7d566b57d8dc5. 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/ES71G2422804.